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-63/x=-9
We move all terms to the left:
-63/x-(-9)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
-63/x+9=0
We multiply all the terms by the denominator
9*x-63=0
We add all the numbers together, and all the variables
9x-63=0
We move all terms containing x to the left, all other terms to the right
9x=63
x=63/9
x=7
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