3/5k+12=21

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Solution for 3/5k+12=21 equation: 



3/5k+12=21

We move all terms to the left:

3/5k+12-(21)=0



Domain of the equation: 5k!=0

k!=0/5

k!=0

k∈R



We add all the numbers together, and all the variables

3/5k-9=0

We multiply all the terms by the denominator


-9*5k+3=0

Wy multiply elements

-45k+3=0

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

-45k=-3

k=-3/-45

k=1/15

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