15=9+n

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Solution for 15=9+n equation:


Simplifying
15 = 9 + n

Solving
15 = 9 + 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.
15 + -1n = 9 + n + -1n

Combine like terms: n + -1n = 0
15 + -1n = 9 + 0
15 + -1n = 9

Add '-15' to each side of the equation.
15 + -15 + -1n = 9 + -15

Combine like terms: 15 + -15 = 0
0 + -1n = 9 + -15
-1n = 9 + -15

Combine like terms: 9 + -15 = -6
-1n = -6

Divide each side by '-1'.
n = 6

Simplifying
n = 6

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