3n-18=n-4

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Solution for 3n-18=n-4 equation:


Simplifying
3n + -18 = n + -4

Reorder the terms:
-18 + 3n = n + -4

Reorder the terms:
-18 + 3n = -4 + n

Solving
-18 + 3n = -4 + 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.
-18 + 3n + -1n = -4 + n + -1n

Combine like terms: 3n + -1n = 2n
-18 + 2n = -4 + n + -1n

Combine like terms: n + -1n = 0
-18 + 2n = -4 + 0
-18 + 2n = -4

Add '18' to each side of the equation.
-18 + 18 + 2n = -4 + 18

Combine like terms: -18 + 18 = 0
0 + 2n = -4 + 18
2n = -4 + 18

Combine like terms: -4 + 18 = 14
2n = 14

Divide each side by '2'.
n = 7

Simplifying
n = 7

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