-3/7x21

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Solution for -3/7x21 equation: 


x in (-oo:+oo)

(-3/7)*x > 21 // - 21

(-3/7)*x-21 > 0

-3/7*x-21 > 0 // + 21

-3/7*x > 21 // : -3/7

x < 21/(-3/7)

x < -49

x in (-oo:-49)

(-oo:-49)

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