7k+k-4K-4k+4k=8

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Solution for 7k+k-4K-4k+4k=8 equation: 



7k+k-4-4k+4k=8

We move all terms to the left:

7k+k-4-4k+4k-(8)=0

We add all the numbers together, and all the variables

8k-12=0

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

8k=12

k=12/8

k=1+1/2

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