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Math

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What is the solution for the following system of linear equations?

x + 6y = -4 3x - 4y = 10

  • Math -

    from the first equation:
    x = -(6y+4)
    substitute that for x in the second equation
    -3(6y+4) -4y = 10
    -18y -12 -4y = 10
    -22 y = 22
    y = -1
    now go back and get x
    x = -(6*-1 + 4)
    x = - (-2)
    x = 2
    check
    2 + 6*-1 = -4 sure enough
    3*2 -4*-1 = 10 yes

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