12n-5n=105

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Solution for 12n-5n=105 equation: 



12n-5n=105

We move all terms to the left:

12n-5n-(105)=0

We add all the numbers together, and all the variables

7n-105=0

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

7n=105

n=105/7

n=15

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