n-2(108-n-n)=9

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Solution for n-2(108-n-n)=9 equation:


n-2(108-n-n)=9

We simplify the equation to the form, which is simple to understand 
n-2(108-n-n)=9

Reorder the terms in parentheses
n+(-216+4n)=9

Remove unnecessary parentheses
+n-216+4n=+9

We move all terms containing n to the left and all other terms to the right. 
+1n+4n=+9+216

We simplify left and right side of the equation. 
+5n=+225

We divide both sides of the equation by 5 to get n. 
n=45

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