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1/5x=84
We move all terms to the left:
1/5x-(84)=0
Domain of the equation: 5x!=0We multiply all the terms by the denominator
x!=0/5
x!=0
x∈R
-84*5x+1=0
Wy multiply elements
-420x+1=0
We move all terms containing x to the left, all other terms to the right
-420x=-1
x=-1/-420
x=1/420
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