18-4=12b+9

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Solution for 18-4=12b+9 equation: 



18-4=12b+9

We move all terms to the left:

18-4-(12b+9)=0

We add all the numbers together, and all the variables

-(12b+9)+14=0

We get rid of parentheses

-12b-9+14=0

We add all the numbers together, and all the variables

-12b+5=0

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

-12b=-5

b=-5/-12

b=5/12

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