3n+(-7n)+(-9n)=

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Solution for 3n+(-7n)+(-9n)= equation:


3n+(-7n)+(-9n)=0

We simplify the equation to the form, which is simple to understand 
3n+(-7n)+(-9n)=0

Remove unnecessary parentheses
+3n-7n+(-9n+)=0

Remove unnecessary parentheses
+3n-7n-9n=0

We move all terms containing n to the left and all other terms to the right. 
+3n-7n-9n=0

We simplify left and right side of the equation. 
-13n=0

We divide both sides of the equation by -13 to get n. 
n=-0

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