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-2(8k-9)=18+16k

We move all terms to the left:

-2(8k-9)-(18+16k)=0

We add all the numbers together, and all the variables

-2(8k-9)-(16k+18)=0

We multiply parentheses

-16k-(16k+18)+18=0

We get rid of parentheses

-16k-16k-18+18=0

We add all the numbers together, and all the variables

-32k=0

k=0/-32

k=0

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