Question

Помогите срочно!!!примеры по алгебре

Answer 1

Левый столбик? 

7x - 11 = 5x + 9
2x = 20
x = 10

6x + 35x - 9 = 12
41x = 21
x = 21/41

4x + 8 = 5x + 9
x = -1

16x - 3 = 9x + 12
7x = 15
x = 15/7

(x - 2) - 3(x - 2) = 19
(x - 2)(1 - 3) = 19
-2(x - 2) = 19
x - 2 = -19/2
x = -15/2