n+n+n+15=51

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Solution for n+n+n+15=51 equation:


Simplifying
n + n + n + 15 = 51

Reorder the terms:
15 + n + n + n = 51

Combine like terms: n + n = 2n
15 + 2n + n = 51

Combine like terms: 2n + n = 3n
15 + 3n = 51

Solving
15 + 3n = 51

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 = 51 + -15

Combine like terms: 15 + -15 = 0
0 + 3n = 51 + -15
3n = 51 + -15

Combine like terms: 51 + -15 = 36
3n = 36

Divide each side by '3'.
n = 12

Simplifying
n = 12

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