Question

Ayudaaaaaa doy corona al que responda bien

si salen con una pndejda se van reportados​

Answer 1

Verified answer

Respuesta:

[tex]x=-\frac{37}{5},\:y=\frac{88}{5}[/tex]

Explicación:

[tex]\begin{bmatrix}-x+y=25\\ y+4x=-12\end{bmatrix}\\\\-x+y=25 :x=-25+y\\\\\begin{bmatrix}y+4\left(-25+y\right)=-12\end{bmatrix}\\\\\begin{bmatrix}5y-100=-12\end{bmatrix}\\\\5y-100+100=-12+100\\\\5y=88\\\\\frac{5y}{5}=\frac{88}{5}\\\\y=\frac{88}{5}\\\\\mathrm{Para\:}x=-25+y, y=\frac{88}{5}\\\\x=-\frac{37}{5}[/tex]