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zimovet [89]
3 years ago
13

I really need help !!

Mathematics
1 answer:
Arisa [49]3 years ago
7 0

The two angles when added together need to equal 180 degrees:

-4x +5 + -13x +39 = 180

Simplify:

-17x + 44 = 180

Subtract 44 from each side:

-17x = 136

Divide both sides by -17:

x = 136 / -17

x = -8

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