4(3x-1)-3(x-1)=6+2x

Ответ:

4(3x-1) - 3(x-1) = 6 + 2x;

4 * 3x - 4 * 1 - 3 * x + 3 * 1 = 6 + 2x;

12x - 4 - 3x + 3 = 6 + 2x;

9x - 1 = 6 + 2x;

9x - 2x = 6 + 1;

7x = 7;

x = 7 : 7;

x = 1.