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Need Advice for Serious equation drilling/algebra manipulati [#permalink]
27 Aug 2007, 19:01
I'm coming along with my Gmat studies, I'll post my experiance a little later. But what I really need right now is to be pointed in the direction to a resource that would really test my understandings of algebriac manipulations of equations, substituing and combining etc. I find that I have a weak understanding of the limits to how much you can manipulate an equation, I sometimes slip up and don't adhere to pemdas like I should, and generally get confused sometimes that if I multiply one side of the equation, must I multiply every variable in that side of the equation in addition to multiplying the other side. I just want to clarify these type of questions, does wanyone know of a good resource that will help me?