-30=-10-10b

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Solution for -30=-10-10b equation: 



-30=-10-10b

We move all terms to the left:

-30-(-10-10b)=0

We add all the numbers together, and all the variables

-(-10b-10)-30=0

We get rid of parentheses

10b+10-30=0

We add all the numbers together, and all the variables

10b-20=0

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

10b=20

b=20/10

b=2

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