3d-7=8-2d

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Solution for 3d-7=8-2d equation: 



3d-7=8-2d

We move all terms to the left:

3d-7-(8-2d)=0

We add all the numbers together, and all the variables

3d-(-2d+8)-7=0

We get rid of parentheses

3d+2d-8-7=0

We add all the numbers together, and all the variables

5d-15=0

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

5d=15

d=15/5

d=3

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