13/2+5r=-5r/2-1/2(r-3)

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Solution for 13/2+5r=-5r/2-1/2(r-3) equation: 


r in (-oo:+oo)

5*r+13/2 = (-5*r)/2-((1/2)*(r-3)) // - (-5*r)/2-((1/2)*(r-3))

(1/2)*(r-3)+5*r-((-5*r)/2)+13/2 = 0

(1/2)*(r-3)+5*r+(5/2)*r+13/2 = 0

1/2*(r-3)+5*r+(5*r)/2+13/2 = 0

(1/2*2*(r-3))/2+(2*5*r)/2+(5*r)/2+13/2 = 0

1/2*2*(r-3)+2*5*r+5*r+13 = 0

11*r+5*r-3+13 = 0

16*r-3+13 = 0

16*r+10 = 0

(16*r+10)/2 = 0

(16*r+10)/2 = 0 // * 2

16*r+10 = 0

16*r+10 = 0 // - 10

16*r = -10 // : 16

r = -10/16

r = -5/8

r = -5/8

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