Question

4.x +9=5 (2x-7)- 6x.​

Answer 1

x + 9 = 5 (2x - 7) - 6x

x + 9 = 10x - 35 - 6x

x - 10x + 6x = - 35 - 9

- 3x = - 44 | * (-1)

3x = 44

x = $\frac{44}{3}$ = 14 $\frac{2}{3}$

Вроде как-то так...