9=-2(-5)+b

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Solution for 9=-2(-5)+b equation: 



9=-2(-5)+b

We move all terms to the left:

9-(-2(-5)+b)=0



We calculate terms in parentheses: -(-2(-5)+b), so:

-2(-5)+b

determiningTheFunctionDomain
b-2(-5)

We add all the numbers together, and all the variables

b+10

Back to the equation:

-(b+10)



We get rid of parentheses

-b-10+9=0

We add all the numbers together, and all the variables

-1b-1=0

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

-b=1

b=1/-1

b=-1

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