7*(x-5)+1=2-3*(2x-1)

7 * (x - 5) + 1 = 2 - 3 * (2x - 1);

7 * х - 5 * 7 + 1 = 2 - 3 * 2х - 3 * (-1);

7х - 35 + 1 = 2 - 6х + 3;

7х - 34 = - 6х + 5;

7х + 6х = 5 + 34;

13х = 39;

х = 39 : 13;

х = 3;

7 * (3 - 5) + 1 = 2 - 3 * (2 * 3 - 1);

7 * (-2) + 1 = 2 - 3 * 5;

- 14 + 1 = 2 - 15;

- 13 = -13.