4=2(-1)+b

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Solution for 4=2(-1)+b equation: 



4=2(-1)+b

We move all terms to the left:

4-(2(-1)+b)=0



We calculate terms in parentheses: -(2(-1)+b), so:

2(-1)+b

determiningTheFunctionDomain
b+2(-1)

We add all the numbers together, and all the variables

b-2

Back to the equation:

-(b-2)



We get rid of parentheses

-b+2+4=0

We add all the numbers together, and all the variables

-1b+6=0

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

-b=-6

b=-6/-1

b=+6

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