Answer:
x = 9
Explanation:
These are vertical angles, and thus the angles are equal.
7x + 3 = 10x - 24
Combining like terms, we get
27 = 3x, so that x must be 9.
70+30x-140
(7x+3) (10x-14)
70-98+30x-42
70+30x-42-98
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