Question

30 points!! Find the value of x. Show yours steps.

Answer 1

2(x+9)=142
x+9=71
X=62

Answer 2

Answer: x=10

Explanation:

Supplementary angles 142+2(x+9)=180

Subtract 142 frrom both sides

2(x+9)=38

now distribute

2x+18=38

subtract again

2x=20

Divide both sides by 2

x=10