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1/8b=42
We move all terms to the left:
1/8b-(42)=0
Domain of the equation: 8b!=0We multiply all the terms by the denominator
b!=0/8
b!=0
b∈R
-42*8b+1=0
Wy multiply elements
-336b+1=0
We move all terms containing b to the left, all other terms to the right
-336b=-1
b=-1/-336
b=1/336
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