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-   -   Elimination or substitution Equation (https://www.askmehelpdesk.com/showthread.php?t=198443)

  • Mar 25, 2008, 10:02 AM
    floree
    Elimination or substitution Equation
    Solve the following system by substitution or elimination

    2x-4y=3
    -3x+6y=7
  • Mar 25, 2008, 10:14 AM
    ISneezeFunny
    Which one are you thinking of using?

    Why don't you try it out and we'll help you along the way.
  • Mar 25, 2008, 11:33 AM
    floree
    I tried both elimination and substitution I got -x+27=10 for both solutions what did I do wrong?
  • Mar 25, 2008, 12:08 PM
    galactus
    Be careful. Not all systems have solutions.

    If we multiply the top one by 3 and the bottom one by 2, we get:





    Now add them and we get 0=23

    No solution

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