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How large is an angle whose supplement equals 12° less than three times its complement?

User Chrisanthi
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1 Answer

3 votes

Answer:

the angle is 39°.

Explanation:

180° - x = 270° - 3x - 12°

Combining like terms:

-x + 3x = 270° - 12° - 180°

2x = 78°

Dividing both sides by 2:

x = 39°

User Shubomb
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