.15+.5n=.4

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Solution for .15+.5n=.4 equation: 


Simplifying
0.15 + 0.5n = 0.4

Solving
0.15 + 0.5n = 0.4

Solving for variable 'n'.

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

Add '-0.15' to each side of the equation.
0.15 + -0.15 + 0.5n = 0.4 + -0.15

Combine like terms: 0.15 + -0.15 = 0.00
0.00 + 0.5n = 0.4 + -0.15
0.5n = 0.4 + -0.15

Combine like terms: 0.4 + -0.15 = 0.25
0.5n = 0.25

Divide each side by '0.5'.
n = 0.5

Simplifying
n = 0.5

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