-9-9d=7-7d

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Solution for -9-9d=7-7d equation:


-9-9d=7-7d

We simplify the equation to the form, which is simple to understand 
-9-9d=7-7d

We move all terms containing d to the left and all other terms to the right. 
-9d+7d=+7+9

We simplify left and right side of the equation. 
-2d=+16

We divide both sides of the equation by -2 to get d. 
d=-8

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