n+(2n-9)+(3n+6)=123

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Solution for n+(2n-9)+(3n+6)=123 equation:


n+(2n-9)+(3n+6)=123

We simplify the equation to the form, which is simple to understand 
n+(2n-9)+(3n+6)=123

Remove unnecessary parentheses
+n+2n-9+(+3n+6+)=+123

Remove unnecessary parentheses
+n+2n-9+3n+6=+123

We move all terms containing n to the left and all other terms to the right. 
+1n+2n+3n=+123+9-6

We simplify left and right side of the equation. 
+6n=+126

We divide both sides of the equation by 6 to get n. 
n=21

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