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21/50x=8
We move all terms to the left:
21/50x-(8)=0
Domain of the equation: 50x!=0We multiply all the terms by the denominator
x!=0/50
x!=0
x∈R
-8*50x+21=0
Wy multiply elements
-400x+21=0
We move all terms containing x to the left, all other terms to the right
-400x=-21
x=-21/-400
x=21/400
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