ok
45 + 50 + 16x + 5 = 180°
16x = 180 - 45 - 50 - 5
16x = 80
x = 80/16
x = 5 This is the answer (J)
2.- 8x + 18 + 6x + 4 + 180 - (20x + 4) = 180
14x - 20x = -18 - 4 + 4
-6x = -18
x = 18/6
x = 3
KLM = 20(3) + 4
KLM = 60 + 4
KLM = 64 This is the answer (J)
M + 90 + 64 = 180
M = 180 - 90 - 64
M = 26° This is the answer
3.-
