c/21-2=7

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Solution for c/21-2=7 equation: 


c in (-oo:+oo)

c/21-2 = 7 // - 7

c/21-7-2 = 0

1/21*c-9 = 0 // + 9

1/21*c = 9 // : 1/21

c = 9/1/21

c = 189

c = 189

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