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Step 1: 3/(x+3) + 4/(x+4) = 2/(x+2) + 5/(x+5)
Step 2: 3/(x+3) - 2/(x+2) = 5/(x+5)- 4/(x+4)
Step 3: x/(x+3)(x+2) = x/(x+5)(x+4)
Step 4: (x+3)(x+2) = (x+5)(x+4)
Step 5: Simplify to get x= -7/2
Step 2 is crucial to solve it faster.
- by pitta.deepak
Tue Jul 30, 2013 1:23 am- Forum: GMAT Math
- Topic: Quadratic Equation Problem
- Replies: 4
- Views: 2166
I am giving my GMAT in Jan 2013, but if anyone of you are still preparing for it - do let me know.
[email protected]
- by pitta.deepak
Thu May 24, 2012 9:15 pm- Forum: Let's Meet Up
- Topic: Singapore GMAT 2012 Study group
- Replies: 14
- Views: 3833