7(3+3k)=168

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Solution for 7(3+3k)=168 equation: 



7(3+3k)=168

We move all terms to the left:

7(3+3k)-(168)=0

We add all the numbers together, and all the variables

7(3k+3)-168=0

We multiply parentheses

21k+21-168=0

We add all the numbers together, and all the variables

21k-147=0

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

21k=147

k=147/21

k=7

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