7n-3.5n=27.5

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Solution for 7n-3.5n=27.5 equation: 


Simplifying
7n + -3.5n = 27.5

Combine like terms: 7n + -3.5n = 3.5n
3.5n = 27.5

Solving
3.5n = 27.5

Solving for variable 'n'.

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

Divide each side by '3.5'.
n = 7.857142857

Simplifying
n = 7.857142857

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