12=-4.5+8b

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Solution for 12=-4.5+8b equation: 



12=-4.5+8b

We move all terms to the left:

12-(-4.5+8b)=0

We add all the numbers together, and all the variables

-(8b-4.5)+12=0

We get rid of parentheses

-8b+4.5+12=0

We add all the numbers together, and all the variables

-8b+16.5=0

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

-8b=-16.5

b=-16.5/-8

b=2+0.5/8

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