-3-r/8=9/2

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Solution for -3-r/8=9/2 equation: 


r in (-oo:+oo)

-(r/8)-3 = 9/2 // - 9/2

-(r/8)-(9/2)-3 = 0

-(r/8)-9/2-3 = 0

-1/8*r-15/2 = 0 // + 15/2

-1/8*r = 15/2 // : -1/8

r = 15/2/(-1/8)

r = -60

r = -60

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