3-21n=81

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Solution for 3-21n=81 equation:


3-21n=81

We simplify the equation to the form, which is simple to understand 
3-21n=81

We move all terms containing n to the left and all other terms to the right. 
-21n=+81-3

We simplify left and right side of the equation. 
-21n=+78

We divide both sides of the equation by -21 to get n. 
n=-3.7142857142857

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