3c/7=27/21

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Solution for 3c/7=27/21 equation: 


c in (-oo:+oo)

(3*c)/7 = 27/21 // - 27/21

(3*c)/7-(27/21) = 0

(3*c)/7-9/7 = 0

3/7*c-9/7 = 0 // + 9/7

3/7*c = 9/7 // : 3/7

c = 9/7/3/7

c = 3

c = 3

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