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1/x-1+3=13/x-1
We move all terms to the left:
1/x-1+3-(13/x-1)=0
Domain of the equation: x!=0
x∈R
Domain of the equation: x-1)!=0We add all the numbers together, and all the variables
x∈R
1/x-(13/x-1)+2=0
We get rid of parentheses
1/x-13/x+1+2=0
We multiply all the terms by the denominator
1*x+2*x+1-13=0
We add all the numbers together, and all the variables
3x-12=0
We move all terms containing x to the left, all other terms to the right
3x=12
x=12/3
x=4
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