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-9/x=4
We move all terms to the left:
-9/x-(4)=0
Domain of the equation: x!=0We multiply all the terms by the denominator
x∈R
-4*x-9=0
We add all the numbers together, and all the variables
-4x-9=0
We move all terms containing x to the left, all other terms to the right
-4x=9
x=9/-4
x=-2+1/4
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