7-9d=7d+3

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



7-9d=7d+3

We move all terms to the left:

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

We get rid of parentheses

-9d-7d-3+7=0

We add all the numbers together, and all the variables

-16d+4=0

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

-16d=-4

d=-4/-16

d=1/4

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