Question

solve please
$2x + y - 19 = 0 \: \: . \: 2x - 3y + 3 = 0 \: .$
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Answer 1

$i)$

$\left\{\begin{matrix}2x - 3y = - 3 & \\ 2x + y = 19 & \end{matrix}\right.$

Subtraindo as equações obtemos:

$\therefore \: - 4y = - 22 \\ \\ \boxed{ \boxed{y = \frac{11}{2}} }$

Substituindo o valor encontrado;

$2x = 19 - \frac{11}{2} \\ \therefore \: \boxed{x = \frac{27}{4} }$