13k+-8k=-20

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Solution for 13k+-8k=-20 equation: 



13k+-8k=-20

We move all terms to the left:

13k+-8k-(-20)=0

We add all the numbers together, and all the variables

5k+20=0

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

5k=-20

k=-20/5

k=-4

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