12(4r-5r/6)+20=19r-15+45r/2

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Solution for 12(4r-5r/6)+20=19r-15+45r/2 equation: 


r in (-oo:+oo)

12*(4*r-((5*r)/6))+20 = 19*r+(45*r)/2-15 // - 19*r+(45*r)/2-15

12*(4*r-((5*r)/6))-(19*r)-((45*r)/2)+15+20 = 0

12*(4*r+(-5/6)*r)-19*r+(-45/2)*r+15+20 = 0

19/6*12*r-19*r+(-45*r)/2+15+20 = 0

(2*19/6*12*r)/2+(-19*2*r)/2+(-45*r)/2+(2*15)/2+(2*20)/2 = 0

2*19/6*12*r-19*2*r-45*r+2*15+2*20 = 0

38*r-45*r+30+40 = 0

30-7*r+40 = 0

70-7*r = 0

(70-7*r)/2 = 0

(70-7*r)/2 = 0 // * 2

70-7*r = 0

70-7*r = 0 // - 70

-7*r = -70 // : -7

r = -70/(-7)

r = 10

r = 10

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