7=k+18

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Solution for 7=k+18 equation: 



7=k+18

We move all terms to the left:

7-(k+18)=0

We get rid of parentheses

-k-18+7=0

We add all the numbers together, and all the variables

-1k-11=0

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

-k=11

k=11/-1

k=-11

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