6n+3-3n=-12

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Solution for 6n+3-3n=-12 equation: 



6n+3-3n=-12

We move all terms to the left:

6n+3-3n-(-12)=0

We add all the numbers together, and all the variables

3n+15=0

We move all terms containing n to the left, all other terms to the right

3n=-15

n=-15/3

n=-5

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