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    Systems of Equations

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    These are questions that I got wrong on a test..can someone show me how to do these?

    ________
    Solve the equation by graphing.
    2x-3y=12

    3y-2x=-12

    is this equation independent inconsistent or dependent?
    __________________________________________

    Solve the equation by graphing.

    3x-y=4

    3x-y=0

    is this equation independent inconsistent or dependent?
    ___________________________________________

    Solve using the substitution method.
    3y=x+5

    3x-9=-10

    is this equation independent inconsistent or dependent?
    _________________________________________________

    Solve using the substitution method.
    x=1/8y-1
    y=1/4x+39

    is this equation independent inconsistent or dependent?
    _________________________________________________________

    Solve by the addition method

    x+3(y-1)=11
    2(x-y)+8y=28

    is this equation independent inconsistent or dependent?
    _________________________________________________________

    Solve by the addition method

    1/3x-1/6y=1/3
    1/6x+1/4y=0

    is this equation independent inconsistent or dependent?
    _________________________________________________________

    Solve the compound equality. state the solution set using interval notation to graph it.

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    https://brainmass.com/math/linear-algebra/systems-of-equations-154318

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    These are questions that I got wrong on a test..can someone show me how to do these?

    ________
    Solve the equation by graphing.
    2x-3y=12

    3y-2x=-12

    Graph is attached.
    The lines are the same, so there are infinite solutions, and this is dependent.

    is this equation independent inconsistent or dependent?
    __________________________________________

    Solve the equation by graphing.

    3x-y=4

    3x-y=0

    Graph is attached.
    The lines are parallel and never meet, so there are no solutions. This is "inconsistent".

    is this equation independent inconsistent or dependent?
    ___________________________________________

    Solve using the substitution method.
    3y=x+5

    3x-9=-10
    (I'm guessing ...

    Solution Summary

    Various step-by-step examples of solving systems of linear equations.

    $2.49

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