9-5=n

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Solution for 9-5=n equation:


Simplifying
9 + -5 = n

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

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

Combine like terms: n + -1n = 0
4 + -1n = 0

Add '-4' to each side of the equation.
4 + -4 + -1n = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1n = 0 + -4
-1n = 0 + -4

Combine like terms: 0 + -4 = -4
-1n = -4

Divide each side by '-1'.
n = 4

Simplifying
n = 4

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