Решите уравнения 11+2 х=55+3 х; -15-3 х=-7 х+45; -3 х-17=8 х-105

Вычислим корни уравнений.

1) 11 + 2 * х = 55 + 3 * х;

2 * x - 3 * x = 55 - 11;

x * (2 - 3) = 44;

x * (-1) = 44;

-1 * x = 44;

x = - 44/1;

x = - 44.

2) - 15 - 3 * х = - 7 * х + 45;

-3 * x + 7 * x = 45 + 15;

7 * x - 3 * x = 60;

x * (7 - 3) = 60;

4 * x = 60;

x = 60/4;

x = 15.

3) - 3 * х - 17 = 8 * х - 105;

-3 * x - 8 * x = - 105 + 17;

8 * x + 3 * x = 105 - 17;

x * (8 + 3) = 88;

11 * x = 88;

x = 88/11;

x = 8.