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+11+2B+5.5=18
We move all terms to the left:
+11+2B+5.5-(18)=0
We add all the numbers together, and all the variables
2B-1.5=0
We move all terms containing B to the left, all other terms to the right
2B=1.5
B=1.5/2
B=1/1.3333333333333
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