n+n+n+7-n-4=3n+7-n-4

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Solution for n+n+n+7-n-4=3n+7-n-4 equation: 



n+n+n+7-n-4=3n+7-n-4

We move all terms to the left:

n+n+n+7-n-4-(3n+7-n-4)=0

We add all the numbers together, and all the variables

n+n+n-n-(2n+3)+7-4=0

We add all the numbers together, and all the variables

2n-(2n+3)+3=0

We get rid of parentheses

2n-2n-3+3=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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