-9=-5n-4n

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Solution for -9=-5n-4n equation:


-9=-5n-4n

We simplify the equation to the form, which is simple to understand 
-9=-5n-4n

We move all terms containing n to the left and all other terms to the right. 
+5n+4n=+9

We simplify left and right side of the equation. 
+9n=+9

We divide both sides of the equation by 9 to get n. 
n=1

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