Answer:
x = 6
Explanation:
Verticle angles are equal to each other...
m∠A = m∠B
Thus...
4x + 6 = 2x + 18
Now, we isolate x:
Subtract 6 from both sides
4x = 2x + 12
Subtract 2x from both sides
2x = 12
Divide both sides by 2
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