Решите уравнения. 24 - (x:2) = 21 150: (x*2) = 5 12 - (x+2) = 24: (x+1)

Найдем корни.

1) 24 - (x/2) = 21;

x/2 = 24 - 21;

x/2 = 3;

x = 3 * 2;

x = 6.

2) 150 / (x * 2) = 5;

30 / (x * 2) = 1;

2 * x = 30;

x = 30/2;

x = 5.

3) 12 - (x + 2) = 24 * (x + 1);

12 - x - 2 = 24 * x + 24;

10 - x = 24 * x + 24;

-x - 24 * x = 24 - 10;

-25 * x = 14;

x = - 14/25.