3=-7(-1)+b

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Solution for 3=-7(-1)+b equation: 



3=-7(-1)+b

We move all terms to the left:

3-(-7(-1)+b)=0



We calculate terms in parentheses: -(-7(-1)+b), so:

-7(-1)+b

determiningTheFunctionDomain
b-7(-1)

We add all the numbers together, and all the variables

b+7

Back to the equation:

-(b+7)



We get rid of parentheses

-b-7+3=0

We add all the numbers together, and all the variables

-1b-4=0

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

-b=4

b=4/-1

b=-4

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