-7n-2n=12

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Solution for -7n-2n=12 equation: 


Simplifying
-7n + -2n = 12

Combine like terms: -7n + -2n = -9n
-9n = 12

Solving
-9n = 12

Solving for variable 'n'.

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

Divide each side by '-9'.
n = -1.333333333

Simplifying
n = -1.333333333

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