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72/x+3=11
We move all terms to the left:
72/x+3-(11)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
72/x-8=0
We multiply all the terms by the denominator
-8*x+72=0
We add all the numbers together, and all the variables
-8x+72=0
We move all terms containing x to the left, all other terms to the right
-8x=-72
x=-72/-8
x=+9
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