Question

If the degree measure of an angle is 40° less than 3 times the degree measure of its supplementary angle, what is the degree measure of the angle?

Answer 1

Angle:: x
Supplement:: 180-x
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Equation:
x = 3(180-x)-40

x = 540-3x-40
4x = 500
x = 125 degrees

Answer 2

Thank you, I didn't include the 180 in the equation, so that's why I didn't get the right answer at first

Answer 3

welcome :)