-7d+30=11d-8d

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Solution for -7d+30=11d-8d equation: 



-7d+30=11d-8d

We move all terms to the left:

-7d+30-(11d-8d)=0

We add all the numbers together, and all the variables

-7d-(+3d)+30=0

We get rid of parentheses

-7d-3d+30=0

We add all the numbers together, and all the variables

-10d+30=0

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

-10d=-30

d=-30/-10

d=+3

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