Question

Preciso de conta

2x+3y=0 2x+4y=13

Answer 1

Resposta:

Explicação passo-a-passo:

$\left \{ {{2x+3y=0(-1)} \atop {2x+4y=13}} \right.\\\left \{ {-2x-3y=0} \atop {2x+4y=13}} \right. \\\\y=13\\\\2x+3y = 0\\2x+3.13=0\\2x= -39\\x=\frac{-39}{2}$