9=5n+4n

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Solution for 9=5n+4n equation:


Simplifying
9 = 5n + 4n

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

Solving
9 = 9n

Solving for variable 'n'.

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

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

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

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

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

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

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

Simplifying
n = 1

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