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1=2b-13
We move all terms to the left:
1-(2b-13)=0
We get rid of parentheses
-2b+13+1=0
We add all the numbers together, and all the variables
-2b+14=0
We move all terms containing b to the left, all other terms to the right
-2b=-14
b=-14/-2
b=+7
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