Question

Please solve this one?

Answer 1

∠B + ∠D = 180°
5x + 5 + 50 = 180
5x + 55 = 180
5x = 180 - 55
5x =  125
x = 125/5
x = 25

∠B = 5х + 5 = 5*25 + 5 = 130°
∠A = 2х + 14 = 2*25 + 14 = 64°
∠C = 4х + 16 = 4*25 + 16 = 116°