-7n=20-3n

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Solution for -7n=20-3n equation: 



-7n=20-3n

We move all terms to the left:

-7n-(20-3n)=0

We add all the numbers together, and all the variables

-7n-(-3n+20)=0

We get rid of parentheses

-7n+3n-20=0

We add all the numbers together, and all the variables

-4n-20=0

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

-4n=20

n=20/-4

n=-5

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