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What is the length of AC?
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What is the length of AC?

What is the length of AC?-example-1
User Ashbury
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7/x = 84 / (156 -x)
84x = 7(156 -x)
84x = 1092 - 7x
91x = 1092
x = 12

AC = 156 - 12 = 144

answer
D. 144
User Anvy Zhang
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