20=7n-3n

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Solution for 20=7n-3n equation:


20=7n-3n

We simplify the equation to the form, which is simple to understand 
20=7n-3n

We move all terms containing n to the left and all other terms to the right. 
-7n+3n=-20

We simplify left and right side of the equation. 
-4n=-20

We divide both sides of the equation by -4 to get n. 
n=5

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