Quick algebra question?

label Algebra
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Solve the proportion 7/x= 15/2x+7

Feb 13th, 2015

7/x = 15/2x + 7
MULTIPLY both sides by x
7 = x(15/2x + 7)
7 = 15/2 + 7x
SUBTRACT 15/2 from both sides
7 - 15/2 = 7x
COMMON DENOMINATOR IS 2
14/2 - 15/2 = 7x
-1/2 = 7x
DIVIDE both sides by 7
-1/14 = x

Feb 13th, 2015

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Feb 13th, 2015
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Feb 13th, 2015
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