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4/x-4=x/x-4
We move all terms to the left:
4/x-4-(x/x-4)=0
Domain of the equation: x!=0
x∈R
Domain of the equation: x-4)!=0We get rid of parentheses
x∈R
4/x-x/x+4-4=0
Fractions to decimals
4/x+4-4+1=0
We multiply all the terms by the denominator
4*x-4*x+1*x+4=0
We add all the numbers together, and all the variables
x+4=0
We move all terms containing x to the left, all other terms to the right
x=-4
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