20+n=7-5

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Solution for 20+n=7-5 equation: 



20+n=7-5

We move all terms to the left:

20+n-(7-5)=0

We add all the numbers together, and all the variables

n+20-2=0

We add all the numbers together, and all the variables

n+18=0

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

n=-18

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