4n-12=n+15

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Solution for 4n-12=n+15 equation:


Simplifying
4n + -12 = n + 15

Reorder the terms:
-12 + 4n = n + 15

Reorder the terms:
-12 + 4n = 15 + n

Solving
-12 + 4n = 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.
-12 + 4n + -1n = 15 + n + -1n

Combine like terms: 4n + -1n = 3n
-12 + 3n = 15 + n + -1n

Combine like terms: n + -1n = 0
-12 + 3n = 15 + 0
-12 + 3n = 15

Add '12' to each side of the equation.
-12 + 12 + 3n = 15 + 12

Combine like terms: -12 + 12 = 0
0 + 3n = 15 + 12
3n = 15 + 12

Combine like terms: 15 + 12 = 27
3n = 27

Divide each side by '3'.
n = 9

Simplifying
n = 9

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