Solve for x in the following parallelogram. Show your work for full credit.
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Work Shown:
S+R = 180
(4+9x) + (104) = 180
9x+108 = 180
9x = 180-108
9x = 72
x = 72/9
x = 8
Note: Adjacent angles of any parallelogram are supplementary, meaning they add to 180 degrees.