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

Find the value of x that will make A||B-example-1
User Amiel
by
2.8k points

1 Answer

15 votes
15 votes

Answer:

x = 30

Explanation:

When two parallel lines are intersected by a transversal, the interior angles on the same side of the transversal are called co-interior angles and these con interior angles are supplementary.

2x + 50 + 5x - 80 = 180

2x + 5x + 50 - 80 = 180 {Combine like terms}

7x - 30 = 180 {Add 30 to both sides}

7x = 180 + 30

7x = 210 {Divide both sides by 7}

x = 210/7

x = 30

User Darronschall
by
3.1k points