15+9n=9-n

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Solution for 15+9n=9-n equation:


Simplifying
15 + 9n = 9 + -1n

Solving
15 + 9n = 9 + -1n

Solving for variable 'n'.

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

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

Combine like terms: 9n + n = 10n
15 + 10n = 9 + -1n + n

Combine like terms: -1n + n = 0
15 + 10n = 9 + 0
15 + 10n = 9

Add '-15' to each side of the equation.
15 + -15 + 10n = 9 + -15

Combine like terms: 15 + -15 = 0
0 + 10n = 9 + -15
10n = 9 + -15

Combine like terms: 9 + -15 = -6
10n = -6

Divide each side by '10'.
n = -0.6

Simplifying
n = -0.6

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