Question

4(2x+5)-(4x-3)=18-2x
7(-3(x-2)-x)-12=4(5-3x)-4

Answer 1

Ответ:

Объяснение:

1) 8x + 20 - 4x + 3 = 18 - 2x

8x - 4x + 2x = 18 - 20 - 3

6x = -5

x = -5/6

2) 7(-3x + 6 - x) - 12 = 20 - 12x - 4

-28x + 42 - 12 = 16 - 12x

-28x + 12x = 16 - 42 + 12

-16x = -14

x = -14/(-16) = 14/16 = 7/8