4n-9+5n=9

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Solution for 4n-9+5n=9 equation: 


Simplifying
4n + -9 + 5n = 9

Reorder the terms:
-9 + 4n + 5n = 9

Combine like terms: 4n + 5n = 9n
-9 + 9n = 9

Solving
-9 + 9n = 9

Solving for variable 'n'.

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

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

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

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

Divide each side by '9'.
n = 2

Simplifying
n = 2

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