18=3n-n-n-n+2n

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Solution for 18=3n-n-n-n+2n equation:


Simplifying
18 = 3n + -1n + -1n + -1n + 2n

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

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

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

Solving
18 = 2n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

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

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

Add '-18' to each side of the equation.
18 + -18 + -2n = 0 + -18

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

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

Divide each side by '-2'.
n = 9

Simplifying
n = 9

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