2/5r=13-4r-2

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Solution for 2/5r=13-4r-2 equation: 


r in (-oo:+oo)

(2/5)*r = 13-(4*r)-2 // - 13-(4*r)-2

(2/5)*r+4*r-13+2 = 0

22/5*r-11 = 0 // + 11

22/5*r = 11 // : 22/5

r = 11/22/5

r = 5/2

r = 5/2

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