Answer:
x = 15
Explanation:
(2x + 15)° and (x + 30)° are vertically opposite angles and are congruent
equate the 2 angles and solve for x
2x + 15 = x + 30 ( subtract x from both sides )
x + 15 = 30 ( subtract 15 from both sides )
9.4m questions
12.2m answers