18=3(k+3)

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Solution for 18=3(k+3) equation: 



18=3(k+3)

We move all terms to the left:

18-(3(k+3))=0



We calculate terms in parentheses: -(3(k+3)), so:

3(k+3)

We multiply parentheses

3k+9

Back to the equation:

-(3k+9)



We get rid of parentheses

-3k-9+18=0

We add all the numbers together, and all the variables

-3k+9=0

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

-3k=-9

k=-9/-3

k=+3

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