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-21-(-48)=4/x
We move all terms to the left:
-21-(-48)-(4/x)=0
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-(+4/x)-21-(-48)=0
We add all the numbers together, and all the variables
-(+4/x)+27=0
We get rid of parentheses
-4/x+27=0
We multiply all the terms by the denominator
27*x-4=0
We add all the numbers together, and all the variables
27x-4=0
We move all terms containing x to the left, all other terms to the right
27x=4
x=4/27
x=4/27
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