Two angles are vertical, one has a degree measure of 142 and the other has degree measure of 7+2x. Find x

Answer 1

Vertical angles are Equal Angles!!

So just set them equal to each other:

143= 7 +2(x) and solve for x

move 7 to the left side of equation so you get:

143-7 = 136= 2(x) and then divide by 2 to get your answer

136/2 = 68 = x !!

Answer 2

Vertical angles are of equal measures.

So you can set up the equation: 7 + 2x = 142 and solve for x.