what is measure of an angle if it is less 120 less then four times its own supplementary
pls help me im really confuse at this type of question
Supplementary: 180
(180-x)*4-120
x=720-4x-120
5x=120
180-120=\(\boxed{60^\circ}\) degrees.
Angle: x
Supplement to x: 180 - x
x = 4(180 - x) - 120
x = 720 - 4x - 120 Now, add 4x to both sides:
5x = 720 - 120
5x = 600
x = 120
Angle = 120; supplement = 180 - 120 = 60.
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