-2(n-12)+1=-2+21

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Solution for -2(n-12)+1=-2+21 equation: 



-2(n-12)+1=-2+21

We move all terms to the left:

-2(n-12)+1-(-2+21)=0

We add all the numbers together, and all the variables

-2(n-12)+1-19=0

We add all the numbers together, and all the variables

-2(n-12)-18=0

We multiply parentheses

-2n+24-18=0

We add all the numbers together, and all the variables

-2n+6=0

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

-2n=-6

n=-6/-2

n=+3

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