21k+7=31

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Solution for 21k+7=31 equation: 



21k+7=31

We move all terms to the left:

21k+7-(31)=0

We add all the numbers together, and all the variables

21k-24=0

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

21k=24

k=24/21

k=1+1/7

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