3+0.4n=

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Solution for 3+0.4n= equation: 


Simplifying
3 + 0.4n = 0

Solving
3 + 0.4n = 0

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3 + 0.4n = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 0.4n = 0 + -3
0.4n = 0 + -3

Combine like terms: 0 + -3 = -3
0.4n = -3

Divide each side by '0.4'.
n = -7.5

Simplifying
n = -7.5

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