20 Points!!! Need Help ASAP!!! Will mark Brainliest!!!
Given: AB || CD, m
MA. 15
B. 33
C. 87
D. 93
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Answer:
The answer is A
Step-by-step explanation:
5x + 18 = 7x - 12
Subtract 7x from both sides
5x + 18 - 7x = 7x - 12 - 7x
-2x + 18 = -12
Subtract 18 from both sides
-2x + 18 - 18 = -12 - 18
-2x = -30
Divide both sides by -2
-2x/-2 = -30/-2
x = 15