SOLUTION: if angle x is 57 degrees, what must be the measure of angle y for the angles to be supplementary?

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Question 799741: if angle x is 57 degrees, what must be the measure of angle y for the angles to be supplementary?
Answer by solver91311(24713) About Me  (Show Source):
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If x and y are supplementary, x + y = 180. Substitute 57 for x and then solve for y.

John

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