Question

Find the value of x that will make A||B

Answer 1

x=5

Explanation:

9x-40=3x+20

12x=60

x=5

Answer 2

x = 10

Explanation:

To make A // B, corresponding angles should be congruent.

9x - 40 = 3x + 20

Subtract 3x from both sides

9x - 3x - 40 = 20

6x - 40 = 20

Add 40 to both sides

6x = 20+40

6x = 60

Divide both sides by 6

x = 60/6

x = 10