Question

qual o valor de x e de y no sistema

{x/5-y/2=-3/2
{-x-x=4

Answer 1

-×-×=4
-2x=4
x= -4/2
x=-2

x/5 - y/2 = 3/2
-2/5 - y/2 = 3/2
-y/2=3/2 + 2/5
-y/2 = 15/10 + 4/10
-y/2 = 19/10
y = - 19/10 × 2
y = -38/10
y = - 3,8