7n+2n-1=-3

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Solution for 7n+2n-1=-3 equation: 



7n+2n-1=-3

We move all terms to the left:

7n+2n-1-(-3)=0

We add all the numbers together, and all the variables

9n+2=0

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

9n=-2

n=-2/9

n=-2/9

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