9k-13=7k-1

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Solution for 9k-13=7k-1 equation: 



9k-13=7k-1

We move all terms to the left:

9k-13-(7k-1)=0

We get rid of parentheses

9k-7k+1-13=0

We add all the numbers together, and all the variables

2k-12=0

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

2k=12

k=12/2

k=6

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