Question

x+ y =5

x -4 =39

POR FAVOR!!!​

Answer 1

$\LARGE\displaystyle{}\begin{cases}x + y = 5 \\ x - 4 = 39\end{cases} \\\\ \LARGE\displaystyle{}\begin{cases}x + y = 5 \\ x = 43\end{cases} \\\\ \LARGE\displaystyle{}43 + y = 5 \\\\ \LARGE\displaystyle{}y = - 38 \\\\ \LARGE\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{ \left(x,y\right) = \left(43, - 38\right)}}}\end{gathered} }$

$\LARGE\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{{ \red{Bons}} \blue{\:Estudos}}}}\end{gathered} }$