15-4n=13

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Solution for 15-4n=13 equation: 


Simplifying
15 + -4n = 13

Solving
15 + -4n = 13

Solving for variable 'n'.

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

Add '-15' to each side of the equation.
15 + -15 + -4n = 13 + -15

Combine like terms: 15 + -15 = 0
0 + -4n = 13 + -15
-4n = 13 + -15

Combine like terms: 13 + -15 = -2
-4n = -2

Divide each side by '-4'.
n = 0.5

Simplifying
n = 0.5

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