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1/7b=2
We move all terms to the left:
1/7b-(2)=0
Domain of the equation: 7b!=0We multiply all the terms by the denominator
b!=0/7
b!=0
b∈R
-2*7b+1=0
Wy multiply elements
-14b+1=0
We move all terms containing b to the left, all other terms to the right
-14b=-1
b=-1/-14
b=1/14
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