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(n+4)3=18-n
We simplify the equation to the form, which is simple to understand
(n+4)3=18-n
Reorder the terms in parentheses
(+3n+12)=18-n
Remove unnecessary parentheses
+3n+12=18-n
We move all terms containing n to the left and all other terms to the right.
+3n+1n=+18-12
We simplify left and right side of the equation.
+4n=+6
We divide both sides of the equation by 4 to get n.
n=1.5
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