7=4+k

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Solution for 7=4+k equation: 



7=4+k

We move all terms to the left:

7-(4+k)=0

We add all the numbers together, and all the variables

-(k+4)+7=0

We get rid of parentheses

-k-4+7=0

We add all the numbers together, and all the variables

-1k+3=0

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

-k=-3

k=-3/-1

k=+3

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