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

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

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

x = -9/3/7

x = -21

x = -21

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