21-x/5=x-9/3

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Solution for 21-x/5=x-9/3 equation: 


x in (-oo:+oo)

21-(x/5) = x-(9/3) // - x-(9/3)

9/3-(x/5)-x+21 = 0

24-6/5*x = 0 // - 24

-6/5*x = -24 // : -6/5

x = -24/(-6/5)

x = 20

x = 20

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