30-7d=10d-4

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Solution for 30-7d=10d-4 equation: 



30-7d=10d-4

We move all terms to the left:

30-7d-(10d-4)=0

We get rid of parentheses

-7d-10d+4+30=0

We add all the numbers together, and all the variables

-17d+34=0

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

-17d=-34

d=-34/-17

d=+2

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