Question

1)(3х + 8) ∙ 6 = 4 ∙ (1 – 5х);
2)5(6- 2х) + 7(3х - 4) = 2х – 9;

Answer 1

Ответ:

1) -1 5/19  2) -1 2/9

Пошаговое объяснение:

1) (3х + 8) ∙ 6 = 4 ∙ (1 – 5х)

18х + 48 = 4 - 20х

18х + 20х = 4 - 48

38х = - 48

х = -48 : 38

х = -1 5/19

2) 5(6- 2х) + 7(3х - 4) = 2х – 9

30 - 10х + 21х - 28 - 2х = -9

9х = -9 - 2

9х = -11

х = -11 : 9

х = -1 2/9