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Math Help - Need help with linear equations

  1. #1
    Newbie
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    Need help with linear equations

    Are these systems consistent, inconsistent, or dependent?

    3x + 2y = 15
    6x + 4y = 30


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



    Thanks!!
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  2. #2
    Super Member Matt Westwood's Avatar
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    You can see at a glance that they're dependent.

    The first pair: the 2nd equation is 2x the first one.

    The second pair: the 2nd equation is 3x the first one.
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