9+3k=7k+1

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Solution for 9+3k=7k+1 equation: 



9+3k=7k+1

We move all terms to the left:

9+3k-(7k+1)=0

We get rid of parentheses

3k-7k-1+9=0

We add all the numbers together, and all the variables

-4k+8=0

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

-4k=-8

k=-8/-4

k=+2

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