Question

For what value of X is line a parallel to line B?
(4x+28). 112. 68

Answer 1

x = 10

Explanation:

Same side interior angles are supplementary (SSIA theorem).

Set the equation equal to 180 then solve for x.

4x + 28 = 68

Solve

68 - 28 = 40

40/4 = 10

x = 10

Answer 2

10

Explanation:

112 + 4x + 28 = 180°

140 + 4x = 180°

4x = 180 - 140

x = 10