12n+3n=-18

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Solution for 12n+3n=-18 equation: 


Simplifying
12n + 3n = -18

Combine like terms: 12n + 3n = 15n
15n = -18

Solving
15n = -18

Solving for variable 'n'.

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

Divide each side by '15'.
n = -1.2

Simplifying
n = -1.2

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