SOLUTION: The difference between the degree measures of two supplementary angles is 80. Find the degree measure of the larger of the two angles.

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Question 472630: The difference between the degree measures of two supplementary angles is 80. Find the degree measure of the larger of the two angles.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The difference between the degree measures of two supplementary angles is 80. Find the degree measure of the larger of the two angles.
:
two angles, a & b, a is the larger
a + b = 180
a - b = 80
------------adding eliminates b, find a
2a = 260
a = 260%2F2
a = 130 degrees is the larger angle