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52/13=90/x
We move all terms to the left:
52/13-(90/x)=0
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-(+90/x)+52/13=0
We add all the numbers together, and all the variables
-(+90/x)+4=0
We get rid of parentheses
-90/x+4=0
We multiply all the terms by the denominator
4*x-90=0
We add all the numbers together, and all the variables
4x-90=0
We move all terms containing x to the left, all other terms to the right
4x=90
x=90/4
x=22+1/2
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