Д)5=4x-3x е)8=3x-x ж)3x-1=2x з)3x-6=x

5 = 4x - 3x;

5 = х;

5 = 4 * 5 - 3 * 5;

5 = 20 - 15;

5 = 5.

8 = 3x - x;

8 = 2х;

2х = 8;

х = 8 : 2;

х = 4;

8 = 3 * 4 - 4;

8 = 12 - 4;

8 = 8.

3x - 1 = 2x;

3х - 2х = 1;

х = 1;

3 * 1 - 1 = 2 * 1;

3 - 1 = 2;

2 = 2.

3x - 6 = x;

3х - х = 6;

2х = 6;

х = 6 : 2;

х = 3;

3 * 3 - 6 = 3;

9 - 6 = 3;

3 = 3.