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3/10b=15
We move all terms to the left:
3/10b-(15)=0
Domain of the equation: 10b!=0We multiply all the terms by the denominator
b!=0/10
b!=0
b∈R
-15*10b+3=0
Wy multiply elements
-150b+3=0
We move all terms containing b to the left, all other terms to the right
-150b=-3
b=-3/-150
b=1/50
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