Question

решите систему уравнения
4x+3y=2
5x+y=-3

Answer 1

$4x + 3y = 2 \ 5x + y = - 3$
$y = - 3 - 5x \ 4x + 3y = 2$
$4x + ( - 9) - 15x = 2 \ - 11x = 11 \ x = - 1$
$y = - 3 - 5 times ( - 1) \ y = - 3 + 5 = 2$