8[7 - (6x - 6)] + 6x = 0
8[7 - 6x + 6] + 6x = 0
56 - 48x + 48 + 6x = 0
104 - 42x = 0 .
- 42x = - 104 .
x = 52 / 21
x ≈ 2.476
