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1+5b-4b=-b+13
We move all terms to the left:
1+5b-4b-(-b+13)=0
We add all the numbers together, and all the variables
5b-4b-(-1b+13)+1=0
We add all the numbers together, and all the variables
b-(-1b+13)+1=0
We get rid of parentheses
b+1b-13+1=0
We add all the numbers together, and all the variables
2b-12=0
We move all terms containing b to the left, all other terms to the right
2b=12
b=12/2
b=6
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