Source: Revised GRE PDF 2nd Ed. Section 5; #11 (p. 79)

1

If (a - b)/(a + b) = 2 and b = 1,

If (a - b)/(a + b) = 2 and b = 1, what is the value of a ? 1, 0, -1, -2, -3

2 Explanations

1

Darnell Billups

this is pretty straight forward, so I'm thinking I why people might get this one wrong. I think it's what Chris said in the video: you need to remember to keep the parenthesis when you multiply 2 by (a+1), if you don't, it will be wrong. also, I've gotten questions like this wrong before because my scratch paper was not neat and I confused myself, so don't do that. Another thing is to mark on your paper when you are adding or subtracting on either side of the equal sign. i was the person who never did this because I know how to add and subtract. the thing you may not understand is that this is a timed test with high stakes, so you will forget about the smallest details if you don't write it down.

Oct 24, 2016 • Comment

Sam Kinsman, Magoosh Tutor

Yes, you should definitely make sure you keep your scratch paper neat, so that you avoid making simple / silly mistakes!

Oct 26, 2016 • Reply

1

Gravatar Chris Lele, Magoosh Tutor

Sep 27, 2012 • Comment

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