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If 3w + 2y = x, then what is the value of y ?

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If 3w + 2y = x, then what is the value of y ?  [#permalink]

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New post 26 Mar 2018, 11:57
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A
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  25% (medium)

Question Stats:

83% (01:10) correct 17% (00:51) wrong based on 40 sessions

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If \(3w + 2y = x\), then what is the value of y?


(1) \(6w + 6 = 2x\)

(2) \(9w = 3x - 9\)

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Re: If 3w + 2y = x, then what is the value of y ?  [#permalink]

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New post 26 Mar 2018, 12:07
Gladiator59 wrote:
If \(3w + 2y = x\), then what is the value of y?

(1) \(6w + 6 = 2x\)

(2) \(9w = 3x - 9\)


1. From the question stem 3w + 2y = x -> (1)
6w + 6 = 2x -> (2)

When we multiply the first equation by 2, we get 6w + 4y = 2x -> (3)

Comparing equation (2) and (3), we get y = 1.5 (Sufficient)

2. 9w = 3x - 9
Rewriting the eqaution, we get 9w + 9 = 3x -> (1)
From the question stem 3w + 2y = x -> (2)

When we multiply the second equation by 3, we get 9w + 6y = 3x -> (3)

Comparing equation (1) and (3), we get y = 1.5 (Sufficient - Option D)

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Re: If 3w + 2y = x, then what is the value of y ? &nbs [#permalink] 26 Mar 2018, 12:07
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