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13=6.2-b
We move all terms to the left:
13-(6.2-b)=0
We add all the numbers together, and all the variables
-(-1b+6.2)+13=0
We get rid of parentheses
1b-6.2+13=0
We add all the numbers together, and all the variables
b+6.8=0
We move all terms containing b to the left, all other terms to the right
b=-6.8
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