7n-3=7+n+8n

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Solution for 7n-3=7+n+8n equation: 



7n-3=7+n+8n

We move all terms to the left:

7n-3-(7+n+8n)=0

We add all the numbers together, and all the variables

7n-(9n+7)-3=0

We get rid of parentheses

7n-9n-7-3=0

We add all the numbers together, and all the variables

-2n-10=0

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

-2n=10

n=10/-2

n=-5

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