9d-7=7d-3

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Solution for 9d-7=7d-3 equation: 



9d-7=7d-3

We move all terms to the left:

9d-7-(7d-3)=0

We get rid of parentheses

9d-7d+3-7=0

We add all the numbers together, and all the variables

2d-4=0

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

2d=4

d=4/2

d=2

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