7/3k=21

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Solution for 7/3k=21 equation: 



7/3k=21

We move all terms to the left:

7/3k-(21)=0



Domain of the equation: 3k!=0

k!=0/3

k!=0

k∈R



We multiply all the terms by the denominator


-21*3k+7=0

Wy multiply elements

-63k+7=0

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

-63k=-7

k=-7/-63

k=1/9

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