7+9d=7d+3-2

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Solution for 7+9d=7d+3-2 equation: 



7+9d=7d+3-2

We move all terms to the left:

7+9d-(7d+3-2)=0

We add all the numbers together, and all the variables

9d-(7d+1)+7=0

We get rid of parentheses

9d-7d-1+7=0

We add all the numbers together, and all the variables

2d+6=0

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

2d=-6

d=-6/2

d=-3

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