3n+15=n-15

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Solution for 3n+15=n-15 equation:


Simplifying
3n + 15 = n + -15

Reorder the terms:
15 + 3n = n + -15

Reorder the terms:
15 + 3n = -15 + n

Solving
15 + 3n = -15 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
15 + 3n + -1n = -15 + n + -1n

Combine like terms: 3n + -1n = 2n
15 + 2n = -15 + n + -1n

Combine like terms: n + -1n = 0
15 + 2n = -15 + 0
15 + 2n = -15

Add '-15' to each side of the equation.
15 + -15 + 2n = -15 + -15

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

Combine like terms: -15 + -15 = -30
2n = -30

Divide each side by '2'.
n = -15

Simplifying
n = -15

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