-4n+9=-2(2n)-1)+7

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Solution for -4n+9=-2(2n)-1)+7 equation: 



-4n+9=-2(2n)-1)+7

We move all terms to the left:

-4n+9-(-2(2n)-1)+7)=0

We add all the numbers together, and all the variables

-4n-(-22n-1)=0

We get rid of parentheses

-4n+22n+1=0

We add all the numbers together, and all the variables

18n+1=0

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

18n=-1

n=-1/18

n=-1/18

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