9d+42=2d

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Solution for 9d+42=2d equation: 



9d+42=2d

We move all terms to the left:

9d+42-(2d)=0

We add all the numbers together, and all the variables

7d+42=0

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

7d=-42

d=-42/7

d=-6

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