Answer:
x = 23
Step-by-step explanation:
∠ ABE = ∠ BEF = 4x ( alternate angles )
Since DBF is a straight line then the 3 angles sum to 180°, that is
x + 4x + 65 = 180
5x + 65 = 180 ( subtract 65 from both sides )
5x = 115 ( divide both sides by 5 )
x = 23
