3x/7=4/9

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Solution for 3x/7=4/9 equation: 


x in (-oo:+oo)

(3*x)/7 = 4/9 // - 4/9

(3*x)/7-(4/9) = 0

(3*x)/7-4/9 = 0

3/7*x-4/9 = 0 // + 4/9

3/7*x = 4/9 // : 3/7

x = 4/9/3/7

x = 28/27

x = 28/27

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