n+2n-15=0

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Solution for n+2n-15=0 equation: 


Simplifying
n + 2n + -15 = 0

Reorder the terms:
-15 + n + 2n = 0

Combine like terms: n + 2n = 3n
-15 + 3n = 0

Solving
-15 + 3n = 0

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 + 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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