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3(b-2)+b=4
We move all terms to the left:
3(b-2)+b-(4)=0
We add all the numbers together, and all the variables
b+3(b-2)-4=0
We multiply parentheses
b+3b-6-4=0
We add all the numbers together, and all the variables
4b-10=0
We move all terms containing b to the left, all other terms to the right
4b=10
b=10/4
b=2+1/2
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