9=5+b(4-5)

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Solution for 9=5+b(4-5) equation: 



9=5+b(4-5)

We move all terms to the left:

9-(5+b(4-5))=0

We add all the numbers together, and all the variables

-(5+b(-1))+9=0



We calculate terms in parentheses: -(5+b(-1)), so:

5+b(-1)

determiningTheFunctionDomain
b(-1)+5

We multiply parentheses

-1b+5

Back to the equation:

-(-1b+5)



We get rid of parentheses

1b-5+9=0

We add all the numbers together, and all the variables

b+4=0

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

b=-4

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