Question

$3x-2y=0x+y=5$

Answer 1

Resposta:

$3x - 2y = 0 \\ x + y = 5 \\ \\ 3x - 2y = 0 \\ x = 5 - y \\ \\ 3 \times (5 - y) - 2y = 0 \\ 15 - 3y - 2y = 0 \\ - 5y = - 15 \times ( - 1) \\ 5y = 15 \div (5) \\ y = 3 \\ \\ x = 5 - y \\ x = 5 - 3 \\ x = 2 \\ \\ (x.y) = (2.3)$