-8+7d=9d

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Solution for -8+7d=9d equation:



-8+7d=9d
We move all terms to the left:
-8+7d-(9d)=0
We add all the numbers together, and all the variables
-2d-8=0
We move all terms containing d to the left, all other terms to the right
-2d=8
d=8/-2
d=-4

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