-4/2x=3/21

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Solution for -4/2x=3/21 equation: 


x in (-oo:+oo)

(-4/2)*x = 3/21 // - 3/21

(-4/2)*x-(3/21) = 0

(-4/2)*x-1/7 = 0

-2*x-1/7 = 0 // + 1/7

-2*x = 1/7 // : -2

x = 1/7/(-2)

x = -1/14

x = -1/14

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