3+3n=n+18

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Solution for 3+3n=n+18 equation:


Simplifying
3 + 3n = n + 18

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

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

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

Combine like terms: n + -1n = 0
3 + 2n = 18 + 0
3 + 2n = 18

Add '-3' to each side of the equation.
3 + -3 + 2n = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 2n = 18 + -3
2n = 18 + -3

Combine like terms: 18 + -3 = 15
2n = 15

Divide each side by '2'.
n = 7.5

Simplifying
n = 7.5

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