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0.42b-8.3+9.14b=-5.19
We move all terms to the left:
0.42b-8.3+9.14b-(-5.19)=0
We add all the numbers together, and all the variables
9.56b-3.11=0
We move all terms containing b to the left, all other terms to the right
9.56b=3.11
b=3.11/9.56
b=1/3.0739549839228
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