15=-9k-3

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Solution for 15=-9k-3 equation: 



15=-9k-3

We move all terms to the left:

15-(-9k-3)=0

We get rid of parentheses

9k+3+15=0

We add all the numbers together, and all the variables

9k+18=0

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

9k=-18

k=-18/9

k=-2

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