-30=-10-4d

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



-30=-10-4d

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

4d+10-30=0

We add all the numbers together, and all the variables

4d-20=0

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

4d=20

d=20/4

d=5

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