SOLUTION: The measure of an angle is 9 more than twice the other angle. If the two angles are supplementary angles, find the measure of each angle.

Algebra ->  Angles -> SOLUTION: The measure of an angle is 9 more than twice the other angle. If the two angles are supplementary angles, find the measure of each angle.      Log On


   



Question 211753: The measure of an angle is 9 more than twice the other angle. If the two angles are supplementary angles, find the measure of each angle.
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = angle, y= supplement,,or y=180-x
.
y= 2x +9,,,,,,,given
.
180-x = 2x +9
.
-3x = - 171
.
x=57,,,,,,,,y=180-57 = 123
.
check, 57 +123=180,,,ok
.
123 = 2(57) +9 = 123,,,ok
.