Question

Pergunto:

-6X-2=18-2X, em Z

Answer 1

-6x-2=18-2x

-6x+2x=18+2

-4x=20

x=20/-4

x=-5

Answer 2

$- 6x - 2 =18 - 2x \\ - 6x + 2x = 18 + 2 \\ - 4x = 20 ( \times - 1) \\ x = \frac{ - 20}{4} \\ x = - 5$