20=2/5x

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Solution for 20=2/5x equation: 


x in (-oo:+oo)

20 = (2/5)*x // - (2/5)*x

20-((2/5)*x) = 0

(-2/5)*x+20 = 0

20-2/5*x = 0 // - 20

-2/5*x = -20 // : -2/5

x = -20/(-2/5)

x = 50

x = 50

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