-21/20=k/20

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Solution for -21/20=k/20 equation: 



-21/20=k/20

We move all terms to the left:

-21/20-(k/20)=0

We add all the numbers together, and all the variables

-(+k/20)-21/20=0

We get rid of parentheses

-k/20-21/20=0

We multiply all the terms by the denominator


-k-21=0

We add all the numbers together, and all the variables

-1k-21=0

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

-k=21

k=21/-1

k=-21

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