Answer:
x = 16
Step-by-step explanation:
Since the triangles are congruent then corresponding angles are congruent, that is
∠ B = ∠ E , substitute values
x + 15 = 6x - 65 ( subtract 6x from both sides )
- 5x + 15 = - 65 ( subtract 15 from both sides )
- 5x = - 80 ( divide both sides by - 5 )
x = 16
