3x/4=5/7

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


x in (-oo:+oo)

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

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

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

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

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

x = 5/7/3/4

x = 20/21

x = 20/21

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