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# If x – 4y = 1, what is the value of x ?

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Math Expert
Joined: 02 Sep 2009
Posts: 64163
If x – 4y = 1, what is the value of x ?  [#permalink]

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09 Aug 2019, 01:49
00:00

Difficulty:

15% (low)

Question Stats:

78% (00:51) correct 22% (01:02) wrong based on 57 sessions

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If x – 4y = 1, what is the value of x ?

(1) x = 4y + 1
(2) y = x/2 + 1

_________________
Manager
Joined: 18 Apr 2019
Posts: 78
Location: India
GMAT 1: 720 Q48 V40
GPA: 4
Re: If x – 4y = 1, what is the value of x ?  [#permalink]

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09 Aug 2019, 04:22
S1 just restates the equation given in the question. INSUFF

S2 provides an equation with 2 variables. BUT, we already have one equation from question stem. So,2 variables, 2 eq. SUFF
B
Intern
Joined: 05 Jul 2019
Posts: 24
Location: India
Schools: ISB '21
Re: If x – 4y = 1, what is the value of x ?  [#permalink]

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09 Aug 2019, 09:09
Statement 1 not sufficient
Statement 2 sufficient as 2 equations and 2 unknons

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Re: If x – 4y = 1, what is the value of x ?   [#permalink] 09 Aug 2019, 09:09