4=b/9

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Solution for 4=b/9 equation: 



4=b/9

We move all terms to the left:

4-(b/9)=0

We add all the numbers together, and all the variables

-(+b/9)+4=0

We get rid of parentheses

-b/9+4=0

We multiply all the terms by the denominator


-b+4*9=0

We add all the numbers together, and all the variables

-1b+36=0

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

-b=-36

b=-36/-1

b=+36

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