3-n=9-45

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Solution for 3-n=9-45 equation: 



3-n=9-45

We move all terms to the left:

3-n-(9-45)=0

We add all the numbers together, and all the variables

-n+3-(-36)=0

We add all the numbers together, and all the variables

-1n+39=0

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

-n=-39

n=-39/-1

n=+39

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