7(k-2)=21

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Solution for 7(k-2)=21 equation: 



7(k-2)=21

We move all terms to the left:

7(k-2)-(21)=0

We multiply parentheses

7k-14-21=0

We add all the numbers together, and all the variables

7k-35=0

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

7k=35

k=35/7

k=5

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