3.2=20-0.4n

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Solution for 3.2=20-0.4n equation:


3.2=20-0.4n

We simplify the equation to the form, which is simple to understand 
3.2=20-0.4n

We move all terms containing n to the left and all other terms to the right. 
 + 0.4n=+20-3.2

We simplify left and right side of the equation. 
 + 0.4n=+16.8

We divide both sides of the equation by 00.4 to get n. 
n=42

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