4=9k-7

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Solution for 4=9k-7 equation: 



4=9k-7

We move all terms to the left:

4-(9k-7)=0

We get rid of parentheses

-9k+7+4=0

We add all the numbers together, and all the variables

-9k+11=0

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

-9k=-11

k=-11/-9

k=1+2/9

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