3x/5=4/7

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Solution for 3x/5=4/7 equation: 


x in (-oo:+oo)

(3*x)/5 = 4/7 // - 4/7

(3*x)/5-(4/7) = 0

(3*x)/5-4/7 = 0

3/5*x-4/7 = 0 // + 4/7

3/5*x = 4/7 // : 3/5

x = 4/7/3/5

x = 20/21

x = 20/21

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