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March 29, 2017

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Solve the system by the elimination method
5x+5y=-7
7x-2y=13
Could someone please help me? Thanks

  • colege algebra - ,

    multiply the top equation by 2
    and the bottom equation by 5

    10x+10y=-14
    35x-10y=65
    add the equations
    45x=51 and solve for x, then y.

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