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14-12-2016
Mathematics

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

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14-12-2016

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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