6n+3(n-9)=-9

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Solution for 6n+3(n-9)=-9 equation:


Simplifying
6n + 3(n + -9) = -9

Reorder the terms:
6n + 3(-9 + n) = -9
6n + (-9 * 3 + n * 3) = -9
6n + (-27 + 3n) = -9

Reorder the terms:
-27 + 6n + 3n = -9

Combine like terms: 6n + 3n = 9n
-27 + 9n = -9

Solving
-27 + 9n = -9

Solving for variable 'n'.

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

Add '27' to each side of the equation.
-27 + 27 + 9n = -9 + 27

Combine like terms: -27 + 27 = 0
0 + 9n = -9 + 27
9n = -9 + 27

Combine like terms: -9 + 27 = 18
9n = 18

Divide each side by '9'.
n = 2

Simplifying
n = 2

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