(a+6)/21=4/7

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Solution for (a+6)/21=4/7 equation: 



(a+6)/21=4/7

We move all terms to the left:

(a+6)/21-(4/7)=0

We add all the numbers together, and all the variables

(a+6)/21-(+4/7)=0

We get rid of parentheses

(a+6)/21-4/7=0

We calculate fractions

There is no solution for this equation

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