12=9-b/5

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Solution for 12=9-b/5 equation: 



12=9-b/5

We move all terms to the left:

12-(9-b/5)=0

We add all the numbers together, and all the variables

-(-b/5+9)+12=0

We get rid of parentheses

b/5-9+12=0

We multiply all the terms by the denominator


b-9*5+12*5=0

We add all the numbers together, and all the variables

b+15=0

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

b=-15

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