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math

posted by on .

solve with substitution:

4x+y=2
3y+2x=-1

  • math - ,

    y = 2-4x

    Substituting,
    3(2-4x) + 2x = -1
    6-12x + 2x = -1
    -10x = -1-5
    -10x = -6
    x = 6/10 or 3/5

  • math - ,

    error.. that's supposed to be

    -10x = -1-6
    -10x = -7
    x = 7/10

    im so sorry..

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