3(3-k)=15

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Solution for 3(3-k)=15 equation: 



3(3-k)=15

We move all terms to the left:

3(3-k)-(15)=0

We add all the numbers together, and all the variables

3(-1k+3)-15=0

We multiply parentheses

-3k+9-15=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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