7s=3/21

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Solution for 7s=3/21 equation: 


s in (-oo:+oo)

7*s = 3/21 // - 3/21

7*s-(3/21) = 0

7*s-1/7 = 0

7*s-1/7 = 0 // + 1/7

7*s = 1/7 // : 7

s = 1/7/7

s = 1/49

s = 1/49

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