3n+6.4=13.9

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Solution for 3n+6.4=13.9 equation: 


Simplifying
3n + 6.4 = 13.9

Reorder the terms:
6.4 + 3n = 13.9

Solving
6.4 + 3n = 13.9

Solving for variable 'n'.

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

Add '-6.4' to each side of the equation.
6.4 + -6.4 + 3n = 13.9 + -6.4

Combine like terms: 6.4 + -6.4 = 0.0
0.0 + 3n = 13.9 + -6.4
3n = 13.9 + -6.4

Combine like terms: 13.9 + -6.4 = 7.5
3n = 7.5

Divide each side by '3'.
n = 2.5

Simplifying
n = 2.5

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