Question

2X+10= 3 (2X+6) alguém me ajuda nessa conta?

Answer 1

2X + 10 = 6X + 18
2X - 6X = 18 - 10
- 4X = 8 (-1)
X = -8/4 (÷2)
X = -2

Answer 2

$2x + 10 = 3(2x +6 ) \\ 2x + 10 = 6x + 18 \\ 2x - 6x = 18 - 10 \\ - 4x = 8 \: \times ( - 1) \\ 4x = - 8 \\ x = - \frac{8}{4} \\ \boxed{x = - 2}$