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If x ≠ -1, then 11/(11 + 11x) =

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If x ≠ -1, then 11/(11 + 11x) =  [#permalink]

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New post 10 Jan 2018, 23:20
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

89% (00:43) correct 11% (01:17) wrong based on 61 sessions

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Re: If x ≠ -1, then 11/(11 + 11x) =  [#permalink]

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New post 11 Jan 2018, 01:13
11/(11+11x)= 11/11(1+x)
= 1/(1+x)
Ans: C

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Re: If x ≠ -1, then 11/(11 + 11x) =  [#permalink]

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New post 11 Jan 2018, 05:13
Bunuel wrote:
If \(x \neq -1\), then \(\frac{11}{11+11x}=\)

A. 1/(2x)

B. 1/(11x)

C. 1/(1 + x)

D. 1/(1 + 11x)

E. 1/(11 + x)



Cancel out 11 from numerator and denominator then it will yield: 1/(1+x)

Answer: C
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Re: If x ≠ -1, then 11/(11 + 11x) =  [#permalink]

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New post 11 Jan 2018, 07:46
Bunuel wrote:
If \(x \neq -1\), then \(\frac{11}{11+11x}=\)

A. 1/(2x)

B. 1/(11x)

C. 1/(1 + x)

D. 1/(1 + 11x)

E. 1/(11 + x)


It's a relatively simple one. 11/(11+11x) = 11/11(1+x)= 1/(1+x). The only bizarre solution will be if 1+x is 0. But that will not be the case as the test question said X is not -1.
So Answer is C
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Re: If x ≠ -1, then 11/(11 + 11x) =  [#permalink]

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New post 18 Jan 2018, 08:45
Bunuel wrote:
If \(x \neq -1\), then \(\frac{11}{11+11x}=\)

A. 1/(2x)

B. 1/(11x)

C. 1/(1 + x)

D. 1/(1 + 11x)

E. 1/(11 + x)


We can simplify the given expression by first factoring 11 from each term of the denominator and then cancelling:

11/[11(1 + x)] = 1/(1 + x)

Answer: C
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Re: If x ≠ -1, then 11/(11 + 11x) =   [#permalink] 18 Jan 2018, 08:45
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