2n-n-4+7n=4

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Solution for 2n-n-4+7n=4 equation: 



2n-n-4+7n=4

We move all terms to the left:

2n-n-4+7n-(4)=0

We add all the numbers together, and all the variables

8n-8=0

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

8n=8

n=8/8

n=1

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