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sloving proportions in algebra 1

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7/9=b/b-10

Sep 9th, 2014

7/9 = b / (b - 10 )

7 ( b- 10 ) = 9b  cross multiply

7b - 70 = 9b

7b - 9b = 70  similar term one side

 - 2b = 70

-b = 35

b = -35 answer

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Sep 9th, 2014

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