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What is the value of x?

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Source: — Data Sufficiency |

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by Anurag@Gurome » Wed May 09, 2012 7:50 pm
islands80 wrote:Can't figure this out

What is the value of x?
(1) - (x + y) = x - y
(2) x + y = 2

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(1) -(x + y) = x - y
2x = 0
x = 0; SUFFICIENT.

(2) x + y = 2
We have just one equation but 2 variables, so there is no unique values of x; NOT sufficient.

The correct answer is A.
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by islands80 » Wed May 09, 2012 7:52 pm
Thanks!!!

I was getting -X = X for (1) and I didn't know where to go from there.
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by Anurag@Gurome » Wed May 09, 2012 7:53 pm
islands80 wrote:Thanks!!!

I was getting -X = X for (1) and I didn't know where to go from there.
You are welcome.
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