Решите уровнение: 22+5 х=88+6 х,-8 х+45=-15-4 х,-3 х-17=8 х-105,21-3 у=2 (у-3)

Найдем корни.

1) 22 + 5 * х = 88 + 6 * х;

Приведем к виду a * x = b.

5 * x - 6 * x = 88 - 22;

5 * x - 6 * x = 66;

x * (5 - 6) = 66;

x * (-1) = 66;

-1 * x = 66;

x = - 66/1;

x = - 66.

2) - 8 * х + 45 = - 15 - 4 * х;

-8 * x + 4 * x = - 15 - 45;

8 * x - 4 * x = 15 + 45;

4 * x = 60;

2 * x = 30;

x = 30/2;

x = 15.

3) - 3 * х - 17 = 8 * х - 105;

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

-11 * x = - 100 + 12;

-11 * x = - 90 + 2;

-11 * x = - 88;

11 * x = 88;

x = 88/11;

x = 8.

4) 21 - 3 * у = 2 * (у - 3);

21 - 3 * y = 2 * y - 6;

-3 * y - 2 * y = - 6 - 21;

-5 * y = - 27;

y = 27/5;

y = 5.4.