-20=n+(-15)

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Solution for -20=n+(-15) equation: 



-20=n+(-15)

We move all terms to the left:

-20-(n+(-15))=0



We calculate terms in parentheses: -(n+(-15)), so:

n+(-15)

We add all the numbers together, and all the variables

n-15

Back to the equation:

-(n-15)



We get rid of parentheses

-n+15-20=0

We add all the numbers together, and all the variables

-1n-5=0

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

-n=5

n=5/-1

n=-5

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