9=3(5-k)

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Solution for 9=3(5-k) equation: 



9=3(5-k)

We move all terms to the left:

9-(3(5-k))=0

We add all the numbers together, and all the variables

-(3(-1k+5))+9=0



We calculate terms in parentheses: -(3(-1k+5)), so:

3(-1k+5)

We multiply parentheses

-3k+15

Back to the equation:

-(-3k+15)



We get rid of parentheses

3k-15+9=0

We add all the numbers together, and all the variables

3k-6=0

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

3k=6

k=6/3

k=2

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