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12+45/x=100
We move all terms to the left:
12+45/x-(100)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
45/x-88=0
We multiply all the terms by the denominator
-88*x+45=0
We add all the numbers together, and all the variables
-88x+45=0
We move all terms containing x to the left, all other terms to the right
-88x=-45
x=-45/-88
x=45/88
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