-4.k=20

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Solution for -4.k=20 equation: 



-4.k=20

We move all terms to the left:

-4.k-(20)=0

We add all the numbers together, and all the variables

-4k-20=0

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

-4k=20

k=20/-4

k=-5

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