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    briannahenry's Avatar
    briannahenry Posts: 1, Reputation: 1
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    #1

    Feb 8, 2010, 11:38 AM
    how do you solve this?
    4x+5y=6
    6x-7y=-20
    tileguy's Avatar
    tileguy Posts: 11, Reputation: 2
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    #2

    Feb 8, 2010, 12:05 PM

    Make either x or y the same size in each equation.
    One way is to multiply the first equation by 7 and the second by 5. Then add the equation up and solve. Try this and see if you see the rest of the solution.

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