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19-4/x=15
We move all terms to the left:
19-4/x-(15)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
-4/x+4=0
We multiply all the terms by the denominator
4*x-4=0
We add all the numbers together, and all the variables
4x-4=0
We move all terms containing x to the left, all other terms to the right
4x=4
x=4/4
x=1
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