Question

6x-5y=-3
3x + 2y = 12 por suma y resta​

Answer 1

Respuesta:

$\begin{bmatrix}6x-5y=-3\\ 3x+2y=12\end{bmatrix}\\\\\\\begin{bmatrix}3\cdot \frac{-3+5y}{6}+2y=12\end{bmatrix}\\\\\\\begin{bmatrix}\frac{-3+9y}{2}=12\end{bmatrix}\\\\\\x=\frac{-3+5\cdot \:3}{6}\\\\\\x=2\\\\\\x=2,\:y=3$