9d+9=8d+6

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Solution for 9d+9=8d+6 equation: 



9d+9=8d+6

We move all terms to the left:

9d+9-(8d+6)=0

We get rid of parentheses

9d-8d-6+9=0

We add all the numbers together, and all the variables

d+3=0

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

d=-3

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