21/3x=7

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Solution for 21/3x=7 equation: 



21/3x=7

We move all terms to the left:

21/3x-(7)=0



Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



We multiply all the terms by the denominator


-7*3x+21=0

Wy multiply elements

-21x+21=0

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

-21x=-21

x=-21/-21

x=1

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