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3.99b+0.28=4.69
We move all terms to the left:
3.99b+0.28-(4.69)=0
We add all the numbers together, and all the variables
3.99b-4.41=0
We move all terms containing b to the left, all other terms to the right
3.99b=4.41
b=4.41/3.99
b=1+0.42/3.99
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