15=-4k-9

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Solution for 15=-4k-9 equation: 



15=-4k-9

We move all terms to the left:

15-(-4k-9)=0

We get rid of parentheses

4k+9+15=0

We add all the numbers together, and all the variables

4k+24=0

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

4k=-24

k=-24/4

k=-6

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