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March 29, 2017

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solve using the substitution method. If the system has no solution or infinite number of solution state this
4x+4y=-36
4x+4y=12

  • Math - ,

    4x + 4y = -36
    -4x -4x

    4y = -4x-36
    /4 /4 /4

    y = -x-9
    Now you substitute this equation into the second one.

    4x + 4(-x-9)= 12
    Distribute the 4
    4x-4x = -36
    0x = -36
    0 is not equal to -36, so that means this has no solution.

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