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-4.85-13.9b=18.55-12.6b
We move all terms to the left:
-4.85-13.9b-(18.55-12.6b)=0
We add all the numbers together, and all the variables
-13.9b-(-12.6b+18.55)-4.85=0
We get rid of parentheses
-13.9b+12.6b-18.55-4.85=0
We add all the numbers together, and all the variables
-1.3b-23.4=0
We move all terms containing b to the left, all other terms to the right
-1.3b=23.4
b=23.4/-1.3
b=-18+-3.5527136788005E-15/1.3
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