Question

Resolva, no domínio N, a equação:

a) 2 · (x − 2) + 2 = 6 · (x + 3) + 2x

Answer 1

a) 2(x - 2) + 2 = 6(x + 3) + 2x

2x - 4 + 2 = 6x + 18 + 2x

2x - 2 = 6x + 18 + 2x

2x - 2x - 6x = 18 + 2

-6x = 20 (.-1)

6x = -20

x = - 20/6

x = - 10/3 = -3,3