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3 votes
The question and the numbers for the equation are confusing ::

The question and the numbers for the equation are confusing ::-example-1
User CaioT
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2 Answers

3 votes
Maybe x=180-(4x-15)
Because straight line is 180.
User Eskil
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2 votes
I'm assuming you mean problem 12? If so, the picture is cut off.

User Eski
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