400+20n=680

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Solution for 400+20n=680 equation:


400+20n=680

We simplify the equation to the form, which is simple to understand 
400+20n=680

We move all terms containing n to the left and all other terms to the right. 
+20n=+680-400

We simplify left and right side of the equation. 
+20n=+280

We divide both sides of the equation by 20 to get n. 
n=14

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