4n-9=n+18

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Solution for 4n-9=n+18 equation:


Simplifying
4n + -9 = n + 18

Reorder the terms:
-9 + 4n = n + 18

Reorder the terms:
-9 + 4n = 18 + n

Solving
-9 + 4n = 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.
-9 + 4n + -1n = 18 + n + -1n

Combine like terms: 4n + -1n = 3n
-9 + 3n = 18 + n + -1n

Combine like terms: n + -1n = 0
-9 + 3n = 18 + 0
-9 + 3n = 18

Add '9' to each side of the equation.
-9 + 9 + 3n = 18 + 9

Combine like terms: -9 + 9 = 0
0 + 3n = 18 + 9
3n = 18 + 9

Combine like terms: 18 + 9 = 27
3n = 27

Divide each side by '3'.
n = 9

Simplifying
n = 9

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