n-.3n=28

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Solution for n-.3n=28 equation: 


Simplifying
n + -0.3n = 28

Combine like terms: n + -0.3n = 0.7n
0.7n = 28

Solving
0.7n = 28

Solving for variable 'n'.

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

Divide each side by '0.7'.
n = 40

Simplifying
n = 40

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