8b+12.3-b=8.1+7b+4.2

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Solution for 8b+12.3-b=8.1+7b+4.2 equation: 



8b+12.3-b=8.1+7b+4.2

We move all terms to the left:

8b+12.3-b-(8.1+7b+4.2)=0

We add all the numbers together, and all the variables

8b-b-(7b+12.3)+12.3=0

We add all the numbers together, and all the variables

7b-(7b+12.3)+12.3=0

We get rid of parentheses

7b-7b-12.3+12.3=0

We add all the numbers together, and all the variables

=0

b=0/1

b=0

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