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nx+y=77; x+ny=79

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Solución

Ha introducido [src]
n*x + y = 77
$$n x + y = 77$$
x + n*y = 79
$$n y + x = 79$$
n*y + x = 79
Respuesta rápida
$$n_{1} = - \frac{- \frac{\sqrt{4 y^{2} - 308 y + 6241}}{2} - \frac{79}{2}}{y}$$
=
$$\frac{\sqrt{4 y^{2} - 308 y + 6241} + 79}{2 y}$$
=
-(-39.5 - 39.5*(1 + 0.000640922929017786*y^2 - 0.0493510655343695*y)^0.5)/y

$$x_{1} = \frac{79}{2} - \frac{\sqrt{4 y^{2} - 308 y + 6241}}{2}$$
=
$$\frac{79}{2} - \frac{\sqrt{4 y^{2} - 308 y + 6241}}{2}$$
=
39.5 - 39.5*(1 + 0.000640922929017786*y^2 - 0.0493510655343695*y)^0.5
$$n_{2} = - \frac{\frac{\sqrt{4 y^{2} - 308 y + 6241}}{2} - \frac{79}{2}}{y}$$
=
$$\frac{79 - \sqrt{4 y^{2} - 308 y + 6241}}{2 y}$$
=
-(-39.5 + 39.5*(1 + 0.000640922929017786*y^2 - 0.0493510655343695*y)^0.5)/y

$$x_{2} = \frac{\sqrt{4 y^{2} - 308 y + 6241}}{2} + \frac{79}{2}$$
=
$$\frac{\sqrt{4 y^{2} - 308 y + 6241}}{2} + \frac{79}{2}$$
=
39.5 + 39.5*(1 + 0.000640922929017786*y^2 - 0.0493510655343695*y)^0.5