9=5n-4n

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Solution for 9=5n-4n equation:


Simplifying
9 = 5n + -4n

Combine like terms: 5n + -4n = 1n
9 = 1n

Solving
9 = 1n

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 + -1n = 1n + -1n

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

Add '-9' to each side of the equation.
9 + -9 + -1n = 0 + -9

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

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

Divide each side by '-1'.
n = 9

Simplifying
n = 9

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