Question

If two lines are parallel and a transversal line intersect these two lines and angle A and angle B are co interior angles.If angle A=3x+50 and B=x+30 then x=?​

Answer 1

Angle A = Angle B (co-interior angles)

Angle A = 3x +50

Angle B = x + 30

3x + 50 = x+30

20 = x-3x

20 = -2x

x = 20/-2

x = -10