-21=b+(-16)

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Solution for -21=b+(-16) equation: 



-21=b+(-16)

We move all terms to the left:

-21-(b+(-16))=0



We calculate terms in parentheses: -(b+(-16)), so:

b+(-16)

We add all the numbers together, and all the variables

b-16

Back to the equation:

-(b-16)



We get rid of parentheses

-b+16-21=0

We add all the numbers together, and all the variables

-1b-5=0

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

-b=5

b=5/-1

b=-5

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