Question

7x - 20 = 2x - 3(3x + 2)

Answer 1

7x-5x=2x

2x-20=3×2

3×2=6

6÷2=3

3+20=203

x=23

Answer 2

x=1

Explanation:

7x - 20 = 2x - 3(3x + 2)

Distribute

7x -20 = 2x -9x -6

Combine like terms

7x-20 =-7x -6

Add 7x to each side

7x+7x-20 =-7x+7x -6

14x -20 = -6

Add 20 to each side

14x-20+20 =-6+20

14x = 14

Divide by 14

14x/14=14/14

x=1