3+2d=7+d

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



3+2d=7+d

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2d-d-7+3=0

We add all the numbers together, and all the variables

d-4=0

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

d=4

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