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Math

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Solve each system of equations using substitution.
1.) x+3y=-4
y+x=0
2.) y=2x+3
5x-y=-3
3.) 2y=-4x
4x+2=-11

  • Math -

    Since these are all similar, I'll do one and you can come on back if you get stuck or just want confirmation of your answers.

    #2:
    y=2x+3
    5x-y=-3

    from the first equation,
    y = 2x+3
    Now substitute that into the second equation:
    5x - (2x+3) = -3
    3x - 3 = -3
    3x = 0
    x = 0
    so, y = 3

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