3=b/30

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Solution for 3=b/30 equation: 



3=b/30

We move all terms to the left:

3-(b/30)=0

We add all the numbers together, and all the variables

-(+b/30)+3=0

We get rid of parentheses

-b/30+3=0

We multiply all the terms by the denominator


-b+3*30=0

We add all the numbers together, and all the variables

-1b+90=0

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

-b=-90

b=-90/-1

b=+90

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