6n-7=-8n+21

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Solution for 6n-7=-8n+21 equation: 



6n-7=-8n+21

We move all terms to the left:

6n-7-(-8n+21)=0

We get rid of parentheses

6n+8n-21-7=0

We add all the numbers together, and all the variables

14n-28=0

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

14n=28

n=28/14

n=2

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