280-40n=7

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Solution for 280-40n=7 equation: 



280-40n=7

We move all terms to the left:

280-40n-(7)=0

We add all the numbers together, and all the variables

-40n+273=0

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

-40n=-273

n=-273/-40

n=6+33/40

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