12+5n=42

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Solution for 12+5n=42 equation: 



12+5n=42

We move all terms to the left:

12+5n-(42)=0

We add all the numbers together, and all the variables

5n-30=0

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

5n=30

n=30/5

n=6

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