Sr Examen
ax+5y=3; 2x+y=4
Solución
Respuesta rápida
$$a_{1} = \frac{2 \left(5 y - 3\right)}{y - 4}$$
=
$$\frac{2 \left(5 y - 3\right)}{y - 4}$$
=
$$x_{1} = - \frac{y - 4}{2}$$
=
$$2 - \frac{y}{2}$$
=
=
$$\frac{2 \left(5 y - 3\right)}{y - 4}$$
=
2*(-3 + 5*y)/(-4 + y)
$$x_{1} = - \frac{y - 4}{2}$$
=
$$2 - \frac{y}{2}$$
=
2 - 0.5*y