5n+7n=30

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Solution for 5n+7n=30 equation: 



5n+7n=30

We move all terms to the left:

5n+7n-(30)=0

We add all the numbers together, and all the variables

12n-30=0

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

12n=30

n=30/12

n=2+1/2

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