-4n+9=81

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Solution for -4n+9=81 equation:


-4n+9=81

We simplify the equation to the form, which is simple to understand 
-4n+9=81

We move all terms containing n to the left and all other terms to the right. 
-4n=+81-9

We simplify left and right side of the equation. 
-4n=+72

We divide both sides of the equation by -4 to get n. 
n=-18

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