SOLUTION: How can I solve this type of problem? "The measure of supplementary angle is 10 less than three times its COMPLEMENT. find both angles."

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Question 904736: How can I solve this type of problem?
"The measure of supplementary angle is 10 less than three times its COMPLEMENT. find both angles."
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Assign a variable to the unknown quantity; create expressions and equation to transcribe the description.

The angle's measure, x.

Using x and the measure of the supplementary angle,
x=-10%2B3%2890-x%29 AND target to find is also 180-x.

Solve the first longer equation for x, which IS one of the supplementary angles.