8k+7k=30

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Solution for 8k+7k=30 equation: 



8k+7k=30

We move all terms to the left:

8k+7k-(30)=0

We add all the numbers together, and all the variables

15k-30=0

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

15k=30

k=30/15

k=2

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