Question

Задание 4.5 помогите пожалуйста

Answer 1

1) 11x - 4x = 14
7x = 14
x = 2

2) 20x - 13x - 12x = 6
-5x = 6
x = -1.2

3) 9x + 4x = -26
13x =  -26
x = -2

4) 11x + 7x - 24x = 42
-6x = 42
x = -7

Answer 2

Спасибо!!!!!!