10^k-2=20

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Solution for 10^k-2=20 equation: 



10^k-2=20

We move all terms to the left:

10^k-2-(20)=0

We add all the numbers together, and all the variables

10^k-22=0

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

10^k=22

k=22/1

k=22

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