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-7.1b=6.5b+5.b
We move all terms to the left:
-7.1b-(6.5b+5.b)=0
We add all the numbers together, and all the variables
-7.1b-(+11.5b)=0
We get rid of parentheses
-7.1b-11.5b=0
We add all the numbers together, and all the variables
-18.6b=0
b=0/-18.6
b=0
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