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What is the value of x?
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Author:  GMATBusters [ 01 Nov 2018, 08:26 ]
Post subject:  What is the value of x?

What is the value of x?
(1) 3x – 1 = x
(2) 1/x + 1 = 3

Author:  vishalkazone [ 01 Nov 2018, 08:35 ]
Post subject:  Re: What is the value of x?

One Unknown one equation. We can find out value of X.

Answer D

Author:  BrentGMATPrepNow [ 23 Nov 2021, 06:36 ]
Post subject:  Re: What is the value of x?

GMATBusters wrote:
What is the value of x?
(1) 3x – 1 = x
(2) 1/x + 1 = 3


Target question: What is the value of x?

Statement 1: 3x – 1 = x
Subtract x from both sides: 2x - 1 = 0
Add 1 to both sides: 2x = 1
Solve: x = 1/2
Since we can answer the target question with certainty, statement 1 is SUFFICIENT

Statement 2: 1/x + 1 = 3
Subtract 1 from both sides: 1/x = 2
Multiply both sides by x to get: 1 = 2x
Solve: x = 1/2
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: D

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