-20=10-5n

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Solution for -20=10-5n equation: 



-20=10-5n

We move all terms to the left:

-20-(10-5n)=0

We add all the numbers together, and all the variables

-(-5n+10)-20=0

We get rid of parentheses

5n-10-20=0

We add all the numbers together, and all the variables

5n-30=0

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

5n=30

n=30/5

n=6

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