7=2k+5k

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Solution for 7=2k+5k equation: 



7=2k+5k

We move all terms to the left:

7-(2k+5k)=0

We add all the numbers together, and all the variables

-(+7k)+7=0

We get rid of parentheses

-7k+7=0

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

-7k=-7

k=-7/-7

k=1

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