1=-1/3*9+b

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Solution for 1=-1/3*9+b equation: 



1=-1/3*9+b

We move all terms to the left:

1-(-1/3*9+b)=0



Domain of the equation: 3*9+b)!=0

b∈R



We add all the numbers together, and all the variables

-(+b-1/3*9)+1=0

We get rid of parentheses

-b+1+1/3*9=0

We multiply all the terms by the denominator


-b*3*9+1+1*3*9=0

We add all the numbers together, and all the variables

-b*3*9+28=0

Wy multiply elements

-27b*9+28=0

Wy multiply elements

-243b+28=0

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

-243b=-28

b=-28/-243

b=28/243

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