Supplementary angles sum to 180°. So add the expressions for the two angles, set the sum equal to 180, then solve for x. Plug that value of x back into the expressions for each angle to find the measure of each angle.
Philip P.
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As I suspect this may be a test question, I think you need to complete the rest on your own.
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03/05/21
Yes Y.
would you mind telling me the answer03/05/21