...how does 2x - 5 + 3x - 1 = 3 + 4 simply to 5x - 6 = 3x + 4? I'm having some trouble in my algebra. I re-studied it and have some of the rules memorized to help, but I'm just not a math whiz teen.
I know the end result, after 5x - 6 = 3x + 4, simplifies down when you add 6 to both sides, leaving a 5x = 3x + 10, and then you subtract 3x leaving 2x = 10, which finally you discover the variable by dividing 2 into 2x and 10. The end result for the variable will be x = 5. But how in the world did they get 5x = 6 from 2x - 5 + 3x - 1? You add first, right? Or did I get that confused? The only way I see to get it is to add 3x, 2x, and 1 to get the six, then put the five ahead of it. But that isn't right.
All in all, could someone explain this? Thanks a lot!!
2007-04-30
03:32:01
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8 answers
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asked by
♫ ∫aoli
4
in
Mathematics