-3(k+6)-(-4k-6)=9

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Solution for -3(k+6)-(-4k-6)=9 equation: 



-3(k+6)-(-4k-6)=9

We move all terms to the left:

-3(k+6)-(-4k-6)-(9)=0

We multiply parentheses

-3k-(-4k-6)-18-9=0

We get rid of parentheses

-3k+4k+6-18-9=0

We add all the numbers together, and all the variables

k-21=0

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

k=21

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