7d-3=2d+42

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Solution for 7d-3=2d+42 equation: 



7d-3=2d+42

We move all terms to the left:

7d-3-(2d+42)=0

We get rid of parentheses

7d-2d-42-3=0

We add all the numbers together, and all the variables

5d-45=0

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

5d=45

d=45/5

d=9

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