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7 August, 16:10

Solve 3x - x + 2 = 12

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  1. 7 August, 16:33
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    Remember you can do anything to an equation as long as you do it to both sides (except divide by 0)

    add like terms

    3x-x=3x-1x=2x

    so

    3x-x+2=12

    2x+2=12

    subtract 2 from both sides

    2x=10

    divide both sides by 2

    x=5
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