8n=12-(-9)-(-6n)

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Solution for 8n=12-(-9)-(-6n) equation: 


Simplifying
8n = 12 + -1(-9) + -1(-6n)

Multiply -1 * -9
8n = 12 + 9 + -1(-6n)

Remove parenthesis around (-6n)
8n = 12 + 9 + -1 * -6n

Multiply -1 * -6
8n = 12 + 9 + 6n

Combine like terms: 12 + 9 = 21
8n = 21 + 6n

Solving
8n = 21 + 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
8n + -6n = 21 + 6n + -6n

Combine like terms: 8n + -6n = 2n
2n = 21 + 6n + -6n

Combine like terms: 6n + -6n = 0
2n = 21 + 0
2n = 21

Divide each side by '2'.
n = 10.5

Simplifying
n = 10.5

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