-8b-30=-7(4b-2)-4

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Solution for -8b-30=-7(4b-2)-4 equation: 



-8b-30=-7(4b-2)-4

We move all terms to the left:

-8b-30-(-7(4b-2)-4)=0



We calculate terms in parentheses: -(-7(4b-2)-4), so:

-7(4b-2)-4

We multiply parentheses

-28b+14-4

We add all the numbers together, and all the variables

-28b+10

Back to the equation:

-(-28b+10)



We get rid of parentheses

-8b+28b-10-30=0

We add all the numbers together, and all the variables

20b-40=0

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

20b=40

b=40/20

b=2

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