15+(n+6)=9

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Solution for 15+(n+6)=9 equation:


Simplifying
15 + (n + 6) = 9

Reorder the terms:
15 + (6 + n) = 9

Remove parenthesis around (6 + n)
15 + 6 + n = 9

Combine like terms: 15 + 6 = 21
21 + n = 9

Solving
21 + n = 9

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + n = 9 + -21

Combine like terms: 21 + -21 = 0
0 + n = 9 + -21
n = 9 + -21

Combine like terms: 9 + -21 = -12
n = -12

Simplifying
n = -12

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