-9=2k-5k

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Solution for -9=2k-5k equation: 



-9=2k-5k

We move all terms to the left:

-9-(2k-5k)=0

We add all the numbers together, and all the variables

-(-3k)-9=0

We get rid of parentheses

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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