28=4/7x

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Solution for 28=4/7x equation: 


x in (-oo:+oo)

28 = (4/7)*x // - (4/7)*x

28-((4/7)*x) = 0

(-4/7)*x+28 = 0

28-4/7*x = 0 // - 28

-4/7*x = -28 // : -4/7

x = -28/(-4/7)

x = 49

x = 49

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