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-   -   Solve math problems by elimination (https://www.askmehelpdesk.com/showthread.php?t=664476)

  • May 28, 2012, 08:50 AM
    taybug1991
    solve math problems by elimination
    7x+9y=40
    x=16-3y
  • May 28, 2012, 09:14 AM
    pready
    For 7X + 9Y = 40 just substitute 16 - 3Y for your X. Now your equation = 7(16 - 3Y) + 9Y = 40

    Now just sovle for Y.

    When you solve for Y substitute your answer wher the Y is and solve for X.

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