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How do I solve for x?

How do I solve for x?
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2 votes
How do I solve for x?

How do I solve for x?-example-1
User Faytraneozter
by
9.0k points

1 Answer

2 votes
the external angle is equal to the sum of the other 2 interior angles

basically 109=6x+21+2x
109=8x+21
minus 21 both sides
88=8x
11=x

x=11 degreees
User Rishikarri
by
8.6k points
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