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mathematics: algebra;equations

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-12 + 5u= -48

  • mathematics: algebra;equations - ,

    -12 + 5u= -48
    add 12 to both sides
    5u = -48+12
    5u = -36
    divide both sides by 5
    u = -36/5

  • mathematics: algebra;equations - ,

    -12 + 5u= -48

    -12 + 12 + 5u = -48 + 12
    5u = -36
    u = -7.2

    Check it out:

    -12 + (-36) = -48
    -48 = -48

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