Question

- аме - sers inese Мечете веса eo/ pso 187 12/21 - 11) 120 17) 10(x + 3) - (-9x - 4) -53 (Oyt (ovaxt 4 - (ox tax - - 30 -4 -30 8 - 3 - 4 -2 20) 11 + 10 р 10) 19) -12(x - 12) = -9(1 + 7x) -br (2) 2 = 9-63x -12-63. а-4 -44

Answer 1

we have

-12(x-12)=-9(1+7x)

Apply distributive property both sides

-12x+144=-9-63x

Group terms

63x-12x=-144-9

51x=-153

x=-153/51

x=-3

Part 21

we have

20=5(-3+x)

First way

Apply distributive property right side

20=-15+5x

adds 15 both sides

20+15=5x

35=5x

Divide by 5 both sides

x=35/5

x=7

Second way

20=5(-3+x)

divide by 5 both sides

20/5=