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-28/x+3=10
We move all terms to the left:
-28/x+3-(10)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
-28/x-7=0
We multiply all the terms by the denominator
-7*x-28=0
We add all the numbers together, and all the variables
-7x-28=0
We move all terms containing x to the left, all other terms to the right
-7x=28
x=28/-7
x=-4
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