3/7x=5/21

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Solution for 3/7x=5/21 equation: 


x in (-oo:+oo)

(3/7)*x = 5/21 // - 5/21

(3/7)*x-(5/21) = 0

(3/7)*x-5/21 = 0

3/7*x-5/21 = 0 // + 5/21

3/7*x = 5/21 // : 3/7

x = 5/21/3/7

x = 5/9

x = 5/9

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