10k+9=k+18

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Solution for 10k+9=k+18 equation: 



10k+9=k+18

We move all terms to the left:

10k+9-(k+18)=0

We get rid of parentheses

10k-k-18+9=0

We add all the numbers together, and all the variables

9k-9=0

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

9k=9

k=9/9

k=1

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