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5 times n is three less than twice n. What number is three less than

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Math Expert
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5 times n is three less than twice n. What number is three less than  [#permalink]

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New post 05 Nov 2017, 02:05
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

61% (00:58) correct 39% (01:05) wrong based on 188 sessions

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Re: 5 times n is three less than twice n. What number is three less than  [#permalink]

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New post 05 Nov 2017, 06:05
5 times n is three less than twice n. What number is three less than twice n?

We can represent the equation as 5n = 2n - 3 => 3n = -3 => n =-1

Therefore, 3 less than twice n is 2n - 3 = -5(Option A)
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Re: 5 times n is three less than twice n. What number is three less than  [#permalink]

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New post 20 Jan 2018, 21:16
5N = 2N - 3
Hence, N = -1

Question asks for what number is 3 less than twice n, essentially 2N - 3
Substituting N = -1, 2*(-1) - 3 = -5
Answer is A.
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Re: 5 times n is three less than twice n. What number is three less than  [#permalink]

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New post 21 Jan 2018, 08:20
Bunuel wrote:
5 times n is three less than twice n. What number is three less than twice n?

(A) -5

(B) -2

(C) -1

(D) 3

(E) 5


5n = 2n - 3

Or, 3n = -3

So, n = -1

Quote:
What number is three less than twice n


= \(2*-1 - 3\)

= \(-5\), Answer will be (A)
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Re: 5 times n is three less than twice n. What number is three less than  [#permalink]

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New post 08 Oct 2018, 20:59
Hi All,

We're told that 5 times N is three less than twice N. We're asked to find the number that is three less than twice N. This question is essentially about 'translating'
sentences into equations and a bit of Algebra.

"5 times N is three less than twice N"...
5(N) = 2(N) - 3
3N = -3
N = -1

A number that is "three less than twice N"...
2(-1) - 3 =
-2 -3 =
-5

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Re: 5 times n is three less than twice n. What number is three less than   [#permalink] 08 Oct 2018, 20:59
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