1/9c=21

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Solution for 1/9c=21 equation: 



1/9c=21

We move all terms to the left:

1/9c-(21)=0



Domain of the equation: 9c!=0

c!=0/9

c!=0

c∈R



We multiply all the terms by the denominator


-21*9c+1=0

Wy multiply elements

-189c+1=0

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

-189c=-1

c=-1/-189

c=1/189

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