X/9=8/12=x/21

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Solution for X/9=8/12=x/21 equation: 



X/9=8/12=X/21

We move all terms to the left:

X/9-(8/12)=0

We add all the numbers together, and all the variables

X/9-(+8/12)=0

We get rid of parentheses

X/9-8/12=0

We calculate fractions

There is no solution for this equation

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