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2.1b=11.285-4b
We move all terms to the left:
2.1b-(11.285-4b)=0
We add all the numbers together, and all the variables
2.1b-(-4b+11.285)=0
We get rid of parentheses
2.1b+4b-11.285=0
We add all the numbers together, and all the variables
6.1b-11.285=0
We move all terms containing b to the left, all other terms to the right
6.1b=11.285
b=11.285/6.1
b=1+4.3755274261603/5.1476793248945
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