3-r/8=9

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Solution for 3-r/8=9 equation: 


r in (-oo:+oo)

3-(r/8) = 9 // - 9

3-(r/8)-9 = 0

-1/8*r-6 = 0 // + 6

-1/8*r = 6 // : -1/8

r = 6/(-1/8)

r = -48

r = -48

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