Question

8+4×=6×-4
Outra dúvida.

Answer 1

4x - 6x = - 4 - 8
- 2x = - 12
x = 12 / 2
x = 6

Answer 2

$8 + 4x = 6x - 4 \\ 4x - 6x = - 4 - 8 \\ - 2x = - 12 \: \times ( - 1) \\ 2x = 12 \\ x = \frac{12}{2} \\ \boxed{x = 6}$