15n-6n-20=-7

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Solution for 15n-6n-20=-7 equation: 



15n-6n-20=-7

We move all terms to the left:

15n-6n-20-(-7)=0

We add all the numbers together, and all the variables

9n-13=0

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

9n=13

n=13/9

n=1+4/9

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