5-r/1.3=7.4

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Solution for 5-r/1.3=7.4 equation: 


r in (-oo:+oo)

5-(r/1.3) = 7.4 // - 7.4

5-(r/1.3)-7.4 = 0

5-0.76923077*r-7.4 = 0

-0.76923077*r-2.4 = 0 // + 2.4

-0.76923077*r = 2.4 // : -0.76923077

r = 2.4/(-0.76923077)

r = -3.12

r = -3.12

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