-978=-2(b-87)

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Solution for -978=-2(b-87) equation: 



-978=-2(b-87)

We move all terms to the left:

-978-(-2(b-87))=0



We calculate terms in parentheses: -(-2(b-87)), so:

-2(b-87)

We multiply parentheses

-2b+174

Back to the equation:

-(-2b+174)



We get rid of parentheses

2b-174-978=0

We add all the numbers together, and all the variables

2b-1152=0

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

2b=1152

b=1152/2

b=576

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