Решите уравнения: а) (3 х + 5 х) * 18 = 144 б) (7 у - 3 у) / 8 = 17 в) (6 а + а) / 13 = 14 г) 48 / (9b - b) = 2

Вычислим корни.

а) (3 * х + 5 * х) * 18 = 144;

3 * x + 5 * x = 144/18;

3 * x + 5 * x = 8;

x * (3 + 5) = 8;

x * 8 = 8;

x = 8/8;

x = 1.

б) (7 * у - 3 * у) / 8 = 17;

7 * y - 3 * y = 17 * 8;

y * (7 - 3) = 80 + 56;

y * 4 = 136;

y = 136/4;

y = 68/2;

y = 34.

в) (6 * а + а) / 13 = 14;

6 * a + a = 14 * 13;

a * (6 + 1) = 182;

a * 7 = 182;

a = 182/7;

a = 26.

г) 48 / (9 * b - b) = 2;

48 / (8 * b) = 2;

24 / (8 * b) = 1;

8 * b = 24;

b = 24/8;

b = 3.