3n-4=n+8

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Solution for 3n-4=n+8 equation:


Simplifying
3n + -4 = n + 8

Reorder the terms:
-4 + 3n = n + 8

Reorder the terms:
-4 + 3n = 8 + n

Solving
-4 + 3n = 8 + 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.
-4 + 3n + -1n = 8 + n + -1n

Combine like terms: 3n + -1n = 2n
-4 + 2n = 8 + n + -1n

Combine like terms: n + -1n = 0
-4 + 2n = 8 + 0
-4 + 2n = 8

Add '4' to each side of the equation.
-4 + 4 + 2n = 8 + 4

Combine like terms: -4 + 4 = 0
0 + 2n = 8 + 4
2n = 8 + 4

Combine like terms: 8 + 4 = 12
2n = 12

Divide each side by '2'.
n = 6

Simplifying
n = 6

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