3n-8=n+15

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Solution for 3n-8=n+15 equation:


Simplifying
3n + -8 = n + 15

Reorder the terms:
-8 + 3n = n + 15

Reorder the terms:
-8 + 3n = 15 + n

Solving
-8 + 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.
-8 + 3n + -1n = 15 + n + -1n

Combine like terms: 3n + -1n = 2n
-8 + 2n = 15 + n + -1n

Combine like terms: n + -1n = 0
-8 + 2n = 15 + 0
-8 + 2n = 15

Add '8' to each side of the equation.
-8 + 8 + 2n = 15 + 8

Combine like terms: -8 + 8 = 0
0 + 2n = 15 + 8
2n = 15 + 8

Combine like terms: 15 + 8 = 23
2n = 23

Divide each side by '2'.
n = 11.5

Simplifying
n = 11.5

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