Question

como resolvera equaçao sendo U=Q
-x-5=x+5

Answer 1

-x-5=x+5
-x -x = 5 + 5
-2x = 10
x = 10 / -2
x = -5

Answer 2

$-x-5=x+5\\\\-x-x=5+5\\\\-2x=10\\\\x=\frac{10}{-2}\\\\\boxed{x=-5}$