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24 December, 21:29

What is the solution to this liner equation d-10-2d+7=8+d-10

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  1. 25 December, 01:23
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    Group like terms then

    add like terms

    d-2d-10+7=8-10+d

    -d-3=-2+d

    add d to both sides

    -3=-2+2d

    add 2 to both sides

    -1=2d

    divide both sides by 2

    -1/2=d
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