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March 27, 2017

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Name the point of intersection for the following system, if it exists.

4x – 3y = -3
3x – y = -6

  • math - ,

    we have to solve the system.

    multiply the 2nd by -3
    -9x + 3y = 18
    add that to the first

    -9x + 3y = 18
    4x- 3y = -3

    -5x = 15
    x = -3
    sub into the original 2nd
    -9 - y = -6
    9+y=6
    y = -3

    so they intersect at (-3,-3)

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