How do you solve 5+7k=k7?

1 Answer
Sep 5, 2017

Answer: k=2

Explanation:

Solve 5+7k=k7

First we want to isolate the variable k on one side of the equation by subtracting k and 5 from both sides:
5+7kk5=k7k5

We can simplify:
6k=12

Finally, we divide both sides by 6 to solve for k:
6k6=126

k=2

Substituting into the original equation to check:
5+7(2)=(2)7

514=9

9=9, which is true

Therefore, our answer is k=2