raviram80 wrote:

Hi All,

I am having lot of difficulty in solving data sufficiency problems involving equalities using algebraic manipulations.

I have below questions

1. Are all the Data sufficiency inequality problems that involve only one variable (say x) solvable if we set x to some set of values like 2,1,12,0, -1/2,-1,-2... depending on the constraints of the problem

2. When is it that algebraic manipulations are a must and above method will not work?

Thanks

Dear

raviram80It does sound like you need to strength you understanding of concepts, especially algebra. I recommend posting specific questions in this forum and learning from the expert answers.

Here's a free lesson video you may find helpful about picking numbers on DS:

http://gmat.magoosh.com/lessons/368-choosing-numbersI hope that helps. Let me know if you have any further questions.

Mike

_________________

Mike McGarry

Magoosh Test Prep