210=-7(-6+8b)

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Solution for 210=-7(-6+8b) equation: 



210=-7(-6+8b)

We move all terms to the left:

210-(-7(-6+8b))=0

We add all the numbers together, and all the variables

-(-7(8b-6))+210=0



We calculate terms in parentheses: -(-7(8b-6)), so:

-7(8b-6)

We multiply parentheses

-56b+42

Back to the equation:

-(-56b+42)



We get rid of parentheses

56b-42+210=0

We add all the numbers together, and all the variables

56b+168=0

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

56b=-168

b=-168/56

b=-3

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