if 2 alternate exterior angles of parallel lines are 4x+78 and 13x-49, what does x equal?

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02-03-2019
Mathematics

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if 2 alternate exterior angles of parallel lines are 4x+78 and 13x-49, what does x equal?

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Cathi Cathi · Answer 1 · 2019-03-02T22:01:28+01:00

Cathi Cathi

02-03-2019

Alternate exterior angles are equal.

4x+78 = 13x- 49
Subtract 4x from both sides

78 = 9x-49
Add 49 to both sides

127=9x
Divide both sides by 9
X=14.1

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