1/2r-3=12-6r

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Solution for 1/2r-3=12-6r equation: 


r in (-oo:+oo)

(1/2)*r-3 = 12-(6*r) // - 12-(6*r)

(1/2)*r+6*r-12-3 = 0

13/2*r-15 = 0 // + 15

13/2*r = 15 // : 13/2

r = 15/13/2

r = 30/13

r = 30/13

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