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21322*z=x*y--y+2*x+3*y-13 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
21322*z = x*y + y + 2*x + 3*y - 13
$$21322 z = \left(3 y + \left(2 x + \left(x y + y\right)\right)\right) - 13$$
Solución detallada
Tenemos una ecuación lineal:
21322*z = x*y--y+2*x+3*y-13

Sumamos los términos semejantes en el miembro derecho de la ecuación:
21322*z = -13 + 2*x + 4*y + x*y

Transportamos los términos con la incógnita x
del miembro derecho al izquierdo:
$$- 2 x + 21322 z = x y + 4 y - 13$$
Dividamos ambos miembros de la ecuación en (-2*x + 21322*z)/x
x = -13 + 4*y + x*y / ((-2*x + 21322*z)/x)

Obtenemos la respuesta: x = (13 - 4*y + 21322*z)/(2 + y)
Resolución de la ecuación paramétrica
Se da la ecuación con parámetro:
$$21322 z = x y + 2 x + 4 y - 13$$
Коэффициент при x равен
$$- y - 2$$
entonces son posibles los casos para y :
$$y < -2$$
$$y = -2$$
Consideremos todos los casos con detalles:
Con
$$y < -2$$
la ecuación será
$$x + 21322 z + 25 = 0$$
su solución
$$x = - 21322 z - 25$$
Con
$$y = -2$$
la ecuación será
$$21322 z + 21 = 0$$
su solución
Gráfica
Respuesta rápida [src]
       /(2 + re(y))*(-4*im(y) + 21322*im(z))   (13 - 4*re(y) + 21322*re(z))*im(y)\   (2 + re(y))*(13 - 4*re(y) + 21322*re(z))   (-4*im(y) + 21322*im(z))*im(y)
x1 = I*|------------------------------------ - ----------------------------------| + ---------------------------------------- + ------------------------------
       |                  2     2                               2     2          |                       2     2                               2     2        
       \       (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)       /            (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)     
$$x_{1} = i \left(\frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} - \frac{\left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} + \frac{\left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
x1 = i*((re(y) + 2)*(-4*im(y) + 21322*im(z))/((re(y) + 2)^2 + im(y)^2) - (-4*re(y) + 21322*re(z) + 13)*im(y)/((re(y) + 2)^2 + im(y)^2)) + (re(y) + 2)*(-4*re(y) + 21322*re(z) + 13)/((re(y) + 2)^2 + im(y)^2) + (-4*im(y) + 21322*im(z))*im(y)/((re(y) + 2)^2 + im(y)^2)
Suma y producto de raíces [src]
suma
  /(2 + re(y))*(-4*im(y) + 21322*im(z))   (13 - 4*re(y) + 21322*re(z))*im(y)\   (2 + re(y))*(13 - 4*re(y) + 21322*re(z))   (-4*im(y) + 21322*im(z))*im(y)
I*|------------------------------------ - ----------------------------------| + ---------------------------------------- + ------------------------------
  |                  2     2                               2     2          |                       2     2                               2     2        
  \       (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)       /            (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)     
$$i \left(\frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} - \frac{\left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} + \frac{\left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
=
  /(2 + re(y))*(-4*im(y) + 21322*im(z))   (13 - 4*re(y) + 21322*re(z))*im(y)\   (2 + re(y))*(13 - 4*re(y) + 21322*re(z))   (-4*im(y) + 21322*im(z))*im(y)
I*|------------------------------------ - ----------------------------------| + ---------------------------------------- + ------------------------------
  |                  2     2                               2     2          |                       2     2                               2     2        
  \       (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)       /            (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)     
$$i \left(\frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} - \frac{\left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} + \frac{\left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
producto
  /(2 + re(y))*(-4*im(y) + 21322*im(z))   (13 - 4*re(y) + 21322*re(z))*im(y)\   (2 + re(y))*(13 - 4*re(y) + 21322*re(z))   (-4*im(y) + 21322*im(z))*im(y)
I*|------------------------------------ - ----------------------------------| + ---------------------------------------- + ------------------------------
  |                  2     2                               2     2          |                       2     2                               2     2        
  \       (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)       /            (2 + re(y))  + im (y)                 (2 + re(y))  + im (y)     
$$i \left(\frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} - \frac{\left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right)}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}} + \frac{\left(- 4 \operatorname{im}{\left(y\right)} + 21322 \operatorname{im}{\left(z\right)}\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
=
(2 + re(y))*(13 - 4*re(y) + 21322*re(z)) - I*((13 - 4*re(y) + 21322*re(z))*im(y) + 2*(2 + re(y))*(-10661*im(z) + 2*im(y))) - 2*(-10661*im(z) + 2*im(y))*im(y)
-------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                               2     2                                                                       
                                                                    (2 + re(y))  + im (y)                                                                    
$$\frac{- i \left(2 \left(\operatorname{re}{\left(y\right)} + 2\right) \left(2 \operatorname{im}{\left(y\right)} - 10661 \operatorname{im}{\left(z\right)}\right) + \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) \operatorname{im}{\left(y\right)}\right) + \left(\operatorname{re}{\left(y\right)} + 2\right) \left(- 4 \operatorname{re}{\left(y\right)} + 21322 \operatorname{re}{\left(z\right)} + 13\right) - 2 \left(2 \operatorname{im}{\left(y\right)} - 10661 \operatorname{im}{\left(z\right)}\right) \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
((2 + re(y))*(13 - 4*re(y) + 21322*re(z)) - i*((13 - 4*re(y) + 21322*re(z))*im(y) + 2*(2 + re(y))*(-10661*im(z) + 2*im(y))) - 2*(-10661*im(z) + 2*im(y))*im(y))/((2 + re(y))^2 + im(y)^2)