381,461 views
14 votes
14 votes
Solve for x

4x + 9
16x - 9

Solve for x 4x + 9 16x - 9-example-1
User Techwolf
by
2.2k points

1 Answer

13 votes
13 votes

Answer:

9

Explanation:

Vertical lines are parallel so the given interior angles are supplementary and their sum is equal to 180:

4x + 9 + 16x - 9 = 180 add like terms

20x = 180 divide both sides by 20

x = 9

User Benny Wong
by
2.4k points
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