7k-9=10k

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Solution for 7k-9=10k equation: 



7k-9=10k

We move all terms to the left:

7k-9-(10k)=0

We add all the numbers together, and all the variables

-3k-9=0

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

-3k=9

k=9/-3

k=-3

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