7-2n=122

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Solution for 7-2n=122 equation: 



7-2n=122

We move all terms to the left:

7-2n-(122)=0

We add all the numbers together, and all the variables

-2n-115=0

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

-2n=115

n=115/-2

n=-57+1/2

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