3(-7k+1)=45

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Solution for 3(-7k+1)=45 equation: 



3(-7k+1)=45

We move all terms to the left:

3(-7k+1)-(45)=0

We multiply parentheses

-21k+3-45=0

We add all the numbers together, and all the variables

-21k-42=0

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

-21k=42

k=42/-21

k=-2

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