Question

X=2+y X+y=6 substituição

Answer 1

$\Large\mathsf\displaystyle{}\begin{cases}x = 2 + y \\ x + y = 6\end{cases} \\\ \\ \Large\mathsf\displaystyle{}2 + y + y = 6 \\\Large\mathsf\displaystyle{}y = 2 \\\\ \Large\mathsf\displaystyle{}x = 2 + 2 \\\\ \Large\mathsf\displaystyle{}x = 4$

Solução:

$\Large\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{ \left(x,y\right) = \left(4,2\right) }}}\end{gathered} }$

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