Question

5x+2y=17
x-3y=17 Método de Sustitición
Ayuda porfa...!

Answer 1

Explicación paso a paso:

$\begin{bmatrix}5x+2y=17\\ x-3y=17\end{bmatrix}\\\\\\\mathrm{Sustituir\:}x=\frac{17-2y}{5}\\\\\\\begin{bmatrix}\frac{17-2y}{5}-3y=17\end{bmatrix}\\\\\\\begin{bmatrix}\frac{17-17y}{5}=17\end{bmatrix}\\\\\\\mathrm{Para\:}x=\frac{17-2y}{5}\\\\\\\mathrm{Sustituir\:}y=-4\\\\\\x=\frac{17-2\left(-4\right)}{5}\\\\\\x=5\\\\\\x=5,\:y=-4$