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