Answer:
x = 60
Step-by-step explanation:
Assuming that there are no secret angles unmentioned, the figure in question is a triangle, as it has 3 angles. With this knowledge, we also know that a triangle contains 180°. So, we can do the following to solve for x.
65 + x + (x - 5) = 180
2x + 60 = 180
2x = 120
x = 60
