2-9-n=3n+9

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Solution for 2-9-n=3n+9 equation:


Simplifying
2 + -9 + -1n = 3n + 9

Combine like terms: 2 + -9 = -7
-7 + -1n = 3n + 9

Reorder the terms:
-7 + -1n = 9 + 3n

Solving
-7 + -1n = 9 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-7 + -1n + -3n = 9 + 3n + -3n

Combine like terms: -1n + -3n = -4n
-7 + -4n = 9 + 3n + -3n

Combine like terms: 3n + -3n = 0
-7 + -4n = 9 + 0
-7 + -4n = 9

Add '7' to each side of the equation.
-7 + 7 + -4n = 9 + 7

Combine like terms: -7 + 7 = 0
0 + -4n = 9 + 7
-4n = 9 + 7

Combine like terms: 9 + 7 = 16
-4n = 16

Divide each side by '-4'.
n = -4

Simplifying
n = -4

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