3/11=x/(-21)

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Solution for 3/11=x/(-21) equation: 



3/11=x/(-21)

We move all terms to the left:

3/11-(x/(-21))=0

We calculate fractions


(-(x*11)/()+()/()=0



We calculate terms in parentheses: +(-(x*11)/()+()/(), so:

-(x*11)/()+()/(

We add all the numbers together, and all the variables

-(+x*11)/()+()/(

We add all the numbers together, and all the variables

-(+x*11)/()+1

We multiply all the terms by the denominator


-(+x*11)+1*()

We add all the numbers together, and all the variables

-(+x*11)

We get rid of parentheses

-x*11

Wy multiply elements

-11x

Back to the equation:

+(-11x)



We get rid of parentheses

-11x=0

x=0/-11

x=0

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