9k-5=7k+7-k

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Solution for 9k-5=7k+7-k equation: 



9k-5=7k+7-k

We move all terms to the left:

9k-5-(7k+7-k)=0

We add all the numbers together, and all the variables

9k-(6k+7)-5=0

We get rid of parentheses

9k-6k-7-5=0

We add all the numbers together, and all the variables

3k-12=0

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

3k=12

k=12/3

k=4

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