Find the value of x in each case.
17 x = 2 2/3
18 x = 20 1/2
Corrections to #17:
124 - 2x + 6x = 180
4x = 56
x = 14
17
Angle CBA = 180 - 6x
So....by the Exterior Angle theorem
124 = 2x + 180 - 6x
124 -180 = -4x
-56 = -4x
-56/-4 = x = 14
18
Angle BAE = 2x Angle EBA = 180 - 6x
Again....by the Exterior Angle theorem
4x = 2x + 180 - 6x
4x = -4x + 180
8x =180
x =22.5
