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-5+2(10b-2)=30
We move all terms to the left:
-5+2(10b-2)-(30)=0
We add all the numbers together, and all the variables
2(10b-2)-35=0
We multiply parentheses
20b-4-35=0
We add all the numbers together, and all the variables
20b-39=0
We move all terms containing b to the left, all other terms to the right
20b=39
b=39/20
b=1+19/20
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