Question

Can someone please help me solve for x and then find the measurments of ∠B asap!

Answer 1

Hope this will help

Answer 2

Angle-A and angle-B are alternate interior angles with parallel lines cut by a transversal. That tells you that the two angles are EQUAL. So you can write

8x + 78 = 2x + 114 ,

and it should all be smooth sailing for you from that point.