7=7+5k-k

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Solution for 7=7+5k-k equation: 



7=7+5k-k

We move all terms to the left:

7-(7+5k-k)=0

We add all the numbers together, and all the variables

-(4k+7)+7=0

We get rid of parentheses

-4k-7+7=0

We add all the numbers together, and all the variables

-4k=0

k=0/-4

k=0

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