-3x/7=-9

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Solution for -3x/7=-9 equation: 


x in (-oo:+oo)

(-3*x)/7 = -9 // + 9

(-3*x)/7+9 = 0

9-3/7*x = 0 // - 9

-3/7*x = -9 // : -3/7

x = -9/(-3/7)

x = 21

x = 21

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