21/10=3x/x

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Solution for 21/10=3x/x equation: 



21/10=3x/x

We move all terms to the left:

21/10-(3x/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+3x/x)+21/10=0

We get rid of parentheses

-3x/x+21/10=0

We calculate fractions


(-30x)/10x+21x/10x=0

We multiply all the terms by the denominator


(-30x)+21x=0

We add all the numbers together, and all the variables

21x+(-30x)=0

We get rid of parentheses

21x-30x=0

We add all the numbers together, and all the variables

-9x=0

x=0/-9

x=0

Równanie nie ma rozwiązania

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