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asked May 10, 2017 4.6k views

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Question in the link below.

Mathematics
middle-school

Damercy asked

by Damercy

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6 votes

We can suggest this equation:
5x=40º+x
5x-x=40º
4x=40º
x=40º/4
x=10º

Answer: x=10º

Yury Wallet answered May 12, 2017

by Yury Wallet

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1 vote

The 5x and the combination of (40° + x) are "vertical angles".
Vertical angles are equal.
So
5x = 40° + x

Subtract 'x' from each side: 4x = 40°

Divide each side by 4 : x = ?

Ostati answered May 16, 2017

by Ostati

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