R/-13=7

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Solution for R/-13=7 equation: 


R in (-oo:+oo)

R/(-13) = 7 // - 7

R/(-13)-7 = 0

-1/13*R-7 = 0 // + 7

-1/13*R = 7 // : -1/13

R = 7/(-1/13)

R = -91

R = -91

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