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Help please with math I have trouble

Help please with math I have trouble-example-1

1 Answer

5 votes

The interior angles of any triangle add up to 180º in measure. So we have

4x + (2x + 10º) + (x - 5º) = 180º

Solve for x:

7x + 5º = 180º

7x = 175º

x = 25º

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