Math for Steve

How many solutions does the system of equations have?
y=4x+4
y=4x-3

y=-6x-2
y+2=-6x

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asked by Gabby
  1. Sorry forgot to put these 2 in as well-

    What is the solution of the system?
    5x-y =-7
    3x-y=-2

    What is the solution of the system?
    5x+6y=20
    9x+11y=32

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    posted by Gabby
  2. For the first one, just subtract the two equations to get

    2x = -5
    and go from there

    For the 2nd set, multiply them a bit to get

    45x+54y = 180
    45x+55y = 160
    Now subtract to get
    y = -20
    and go from there

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    posted by Steve
  3. Ok thx

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    posted by Gabby

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