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19.47=b+3
We move all terms to the left:
19.47-(b+3)=0
We get rid of parentheses
-b-3+19.47=0
We add all the numbers together, and all the variables
-1b+16.47=0
We move all terms containing b to the left, all other terms to the right
-b=-16.47
b=-16.47/-1
b=16+0.47/1
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