30n-40=40

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Solution for 30n-40=40 equation: 



30n-40=40

We move all terms to the left:

30n-40-(40)=0

We add all the numbers together, and all the variables

30n-80=0

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

30n=80

n=80/30

n=2+2/3

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