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# If x is different from zero

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If x is different from zero [#permalink]  12 Jun 2018, 09:46
Expert's post
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Question Stats:

90% (00:22) correct 9% (03:25) wrong based on 11 sessions
If $$x \neq 0$$ , then $$\frac{x + 7}{7x} - \frac{1}{x} =$$

A. $$\frac{x+6}{6x}$$

B. $$\frac{x+6}{7x}$$

C. $$\frac{-6x + 7}{7x}$$

D. $$\frac{1}{7}$$

E. $$-\frac{1}{7}$$
[Reveal] Spoiler: OA

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Intern
Joined: 21 Nov 2017
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Re: If x is different from zero [#permalink]  13 Jun 2018, 18:00
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(x+7)/7x - 1/x = (x+7)/7x - 7/7x = (x+7-7)/7x = x/7x = 1/7
--> D
Re: If x is different from zero   [#permalink] 13 Jun 2018, 18:00
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