9d=7+8d

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Solution for 9d=7+8d equation: 



9d=7+8d

We move all terms to the left:

9d-(7+8d)=0

We add all the numbers together, and all the variables

9d-(8d+7)=0

We get rid of parentheses

9d-8d-7=0

We add all the numbers together, and all the variables

d-7=0

We move all terms containing d to the left, all other terms to the right

d=7

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