Answer:
Step-by-step explanation:
4x + 11 = 14 + 15x
14 + 15x = 4x + 11
11x = -3
x = -3/11
x = - 3/11 its negative and it's a fraction
exterior angle property use ...
the exterior angle of an angle is equal to sum of rest 2 interior angles in a triangle
155 = 60 + x
x = 155 - 60 = 95