r-7/-2=-1

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Solution for r-7/-2=-1 equation: 


r in (-oo:+oo)

r-(7/(-2)) = -1 // + 1

r-(7/(-2))+1 = 0

r+7/2+1 = 0

r+9/2 = 0 // - 9/2

r = -9/2

r = -9/2

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