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If xis not = o, then u/x+ 5u/x- u/5x=   A 7x/5u B 5u/7x C 29u/5x D 31u/5x

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patriciabmcca... | High School Teacher | (Level 1) eNoter

Posted March 27, 2013 at 2:49 PM via web

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If xis not = o, then u/x+ 5u/x- u/5x=

 

A 7x/5u

B 5u/7x

C 29u/5x

D 31u/5x

1 Answer | Add Yours

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sciencesolve | Teacher | (Level 3) Educator Emeritus

Posted March 27, 2013 at 3:37 PM (Answer #1)

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You need to evaluate `u/x + (5u)/x - u/(5x)` , hence, you need to bring the terms to a common denominator, such that:

`u/x + (5u)/x - u/(5x) = (5u + 25u - u)/(5x)`

`u/x + (5u)/x - u/(5x) = (29u)/(5x)`

Hence, evaluating the expression `u/x + (5u)/x - u/(5x)` yields `u/x + (5u)/x - u/(5x) = (29u)/(5x)` , thus, you need to select C option.

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