Question

помогите пж пж пжжжжжж​

Answer 1

Ответ:1) 780; 2) 60

1) 1/4 x + 105 = 1/3 x + 40

3x + 1260 = 4x + 480

-x = - 780

x = 780

2) 2x - 55 = 1/3 x + 45

6x - 165 = x + 135

5x = 300

x = 60