9-2n=49

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Solution for 9-2n=49 equation: 



9-2n=49

We move all terms to the left:

9-2n-(49)=0

We add all the numbers together, and all the variables

-2n-40=0

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

-2n=40

n=40/-2

n=-20

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