19k-9k=-20

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Solution for 19k-9k=-20 equation: 



19k-9k=-20

We move all terms to the left:

19k-9k-(-20)=0

We add all the numbers together, and all the variables

10k+20=0

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

10k=-20

k=-20/10

k=-2

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