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n/n-4+n=12-4n/n-4
We simplify the equation to the form, which is simple to understand
n/n-4+n=12-4n/n-4
We move all terms containing n to the left and all other terms to the right.
+1n=+12-4-4-1+4
We simplify left and right side of the equation.
+1n=+7
We divide both sides of the equation by 1 to get n.
n=7
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