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  • Feb 5, 2007, 12:52 PM
    bobbie1234
    Algebra - elimination
    My question is I have a problem to solve. X+Y=10 AND X-Y=6 by elimination but I don't understand how you can solve it by elimination because the signs are different
  • Feb 5, 2007, 12:56 PM
    galactus
    Simply add them together. The fact that the signs of y are different makes it easier.



    Add the second row to the first and eliminate the y.

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