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2/10d=99
We move all terms to the left:
2/10d-(99)=0
Domain of the equation: 10d!=0We multiply all the terms by the denominator
d!=0/10
d!=0
d∈R
-99*10d+2=0
Wy multiply elements
-990d+2=0
We move all terms containing d to the left, all other terms to the right
-990d=-2
d=-2/-990
d=1/495
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