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84/5x=4
We move all terms to the left:
84/5x-(4)=0
Domain of the equation: 5x!=0We multiply all the terms by the denominator
x!=0/5
x!=0
x∈R
-4*5x+84=0
Wy multiply elements
-20x+84=0
We move all terms containing x to the left, all other terms to the right
-20x=-84
x=-84/-20
x=4+1/5
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