SOLUTION: Please help I am in desperate need. I just do not understand these. Two angles are supplementary. One angle is 4 degrees less than three times the other. Find the measurement of

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Question 688156: Please help I am in desperate need. I just do not understand these.
Two angles are supplementary. One angle is 4 degrees less than three times the other. Find the measurement of the angles.
Answer by Alan3354(69443) About Me  (Show Source):
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Two angles are supplementary. One angle is 4 degrees less than three times the other. Find the measurement of the angles.
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Call the angles A & B
A + B = 180 degs
A = 3B - 4
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Solve for A & B
Sub for A in the 1st eqn
(3B-4) + B = 180
4B = 184
B = 46 degs
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A = 180 - B
A = 134 degs