12-1/5r=2r*1

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Solution for 12-1/5r=2r*1 equation: 


r in (-oo:+oo)

12-((1/5)*r) = 1*2*r // - 1*2*r

12-((1/5)*r)-(1*2*r) = 0

(-1/5)*r-2*r+12 = 0

12-11/5*r = 0 // - 12

-11/5*r = -12 // : -11/5

r = -12/(-11/5)

r = 60/11

r = 60/11

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