3 years ago

Please help. And give an explanation. I am so lost.

Mathematics

1 answer:

Verdich [7]3 years ago

8 0

2 opposite interior angle (opposite to the exterior angle) added together are equal to the exterior angle

6x-1+85 = 18x

6x +84 = 18x

subtract 6x from both sides

84 = 12x

divide both sides by 12

x = 7

<em>hope this helps! </em>

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