15=4n-n

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Solution for 15=4n-n equation:


Simplifying
15 = 4n + -1n

Combine like terms: 4n + -1n = 3n
15 = 3n

Solving
15 = 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
15 + -3n = 3n + -3n

Combine like terms: 3n + -3n = 0
15 + -3n = 0

Add '-15' to each side of the equation.
15 + -15 + -3n = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -3n = 0 + -15
-3n = 0 + -15

Combine like terms: 0 + -15 = -15
-3n = -15

Divide each side by '-3'.
n = 5

Simplifying
n = 5

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