n-0.2n=20

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Solution for n-0.2n=20 equation: 


Simplifying
n + -0.2n = 20

Combine like terms: n + -0.2n = 0.8n
0.8n = 20

Solving
0.8n = 20

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Divide each side by '0.8'.
n = 25

Simplifying
n = 25

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