9n+3n=72

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Solution for 9n+3n=72 equation: 


Simplifying
9n + 3n = 72

Combine like terms: 9n + 3n = 12n
12n = 72

Solving
12n = 72

Solving for variable 'n'.

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

Divide each side by '12'.
n = 6

Simplifying
n = 6

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