n+-0.3n=0.7n

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Solution for n+-0.3n=0.7n equation: 



n+-0.3n=0.7n

We move all terms to the left:

n+-0.3n-(0.7n)=0

We add all the numbers together, and all the variables

n-0.3n-(+0.7n)+=0

We add all the numbers together, and all the variables

0.7n-(+0.7n)=0

We get rid of parentheses

0.7n-0.7n=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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