18-2n=4n-9

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Solution for 18-2n=4n-9 equation:


Simplifying
18 + -2n = 4n + -9

Reorder the terms:
18 + -2n = -9 + 4n

Solving
18 + -2n = -9 + 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
18 + -2n + -4n = -9 + 4n + -4n

Combine like terms: -2n + -4n = -6n
18 + -6n = -9 + 4n + -4n

Combine like terms: 4n + -4n = 0
18 + -6n = -9 + 0
18 + -6n = -9

Add '-18' to each side of the equation.
18 + -18 + -6n = -9 + -18

Combine like terms: 18 + -18 = 0
0 + -6n = -9 + -18
-6n = -9 + -18

Combine like terms: -9 + -18 = -27
-6n = -27

Divide each side by '-6'.
n = 4.5

Simplifying
n = 4.5

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