21-9x=31/5

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Solution for 21-9x=31/5 equation: 


x in (-oo:+oo)

21-(9*x) = 31/5 // - 31/5

21-(9*x)-(31/5) = 0

21-9*x-31/5 = 0

74/5-9*x = 0 // - 74/5

-9*x = -74/5 // : -9

x = -74/5/(-9)

x = 74/45

x = 74/45

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