-79=-7k-9

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Solution for -79=-7k-9 equation: 



-79=-7k-9

We move all terms to the left:

-79-(-7k-9)=0

We get rid of parentheses

7k+9-79=0

We add all the numbers together, and all the variables

7k-70=0

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

7k=70

k=70/7

k=10

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