Question 774209
 If four times the supplement of an angle is added to eight times the angle's complement, the sum in equivalent to three straight angles. Find the measure of the angle that is supplementary to the complement.
:
Let A = the angle
then
(180-A) = the supplement
and
(90-A) = the complement
:
The equation:
4(180-A) + 8(90-A) = 3(180)
720 - 4A + 720 - 8A = 540
1440 - 12A = 540
1440 - 540 = 12A
900 = 12A
A = 900/12
A = 75 degrees
:
Not sure what "supplementary to the complement" means