7d-2=42

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Solution for 7d-2=42 equation: 



7d-2=42

We move all terms to the left:

7d-2-(42)=0

We add all the numbers together, and all the variables

7d-44=0

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

7d=44

d=44/7

d=6+2/7

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