1/2=(2/5)x

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Solution for 1/2=(2/5)x equation: 


x in (-oo:+oo)

1/2 = (2/5)*x // - (2/5)*x

1/2-((2/5)*x) = 0

(-2/5)*x+1/2 = 0

1/2-2/5*x = 0 // - 1/2

-2/5*x = -1/2 // : -2/5

x = -1/2/(-2/5)

x = 5/4

x = 5/4

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