Question 485707
(180 -x) = 3(90 -x) -60
180 -x = 270 - 3x - 60
180 - x = 210 - 3x
2x = 310
x = 15
165 = 270 -3x - 60
165 = 210 -3x
45 = 3x
15 degrees = x
Cleomenius.