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10-09-2017
Mathematics

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Solve porportion
3B/5B-7=8/11

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texaschic101 texaschic101

10-09-2017

(3b) / (5b - 7) = 8/11
cross multiply
8(5b - 7) = 11(3b)
40b - 56 = 33b
-56 = 33b - 40b
-56 = -7b
-56/-7 = b
8 = b

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