Question

qual o valor de x e y,2x-3y=-34 e 4x-3y=-38

Answer 1

2x-3y=-34(-1)
4x-3y=-38


-2x+3y=34
 4x-3y=-38
     2x = - 4 ==> x = - 2


2x-3y=-34 ==> 3y = 2x + 34

3y = 2(-2) + 34 ==> 3y = - 4 + 34 ==> 3y = 30 ==> y = 10