-(х+8)=3 1-5(2-3х)=6 7-3(х+1)=6 5-2(3-х)=11 2х-(7+х)=2 -3-3(3-2х)=1

1) - (х + 8) = 3;

- х - 8 = 3;

- х = 3 + 8;

х = -11.

2) 1 - 5 * (2 - 3 * х) = 6;

1 - 5 * 2 + 5 * 3 * х = 6;

1 - 10 + 15 * х = 6.

Сложим в левой доли 1 - 10:

- 9 + 15 * х = 6.

Итог перенесем вправо:

15 * х = 6 + 9;

15 * х = 15;

х = 1.

3) 7 - 3 * (х + 1) = 6;

7 - 3 * х - 3 * 1 = 6;

- 3 * х = 6 - 4;

х = - 2/3.

4) 5 - 2 * (3 - х) = 11;

- 2 * 3 + 2 * х = 11 - 5;

2 * х = 6 + 6;

х = 12/2;

х = 6.

5) 2 * х - (7 + х) = 2;

2 * х - 7 - х = 2;

х = 2 + 7;

х = 9.

6) - 3 - 3 * (3 - 2 * х) = 1;

- 3 * 3 + 3 * 2 * х = 1 + 3;

- 9 + 6 * х = 4;

6 * х = 4 + 9;

х = 13/6;

х = 2 1/6.