20=-30-5n

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Solution for 20=-30-5n equation: 



20=-30-5n

We move all terms to the left:

20-(-30-5n)=0

We add all the numbers together, and all the variables

-(-5n-30)+20=0

We get rid of parentheses

5n+30+20=0

We add all the numbers together, and all the variables

5n+50=0

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

5n=-50

n=-50/5

n=-10

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