1/2(4r+1)-r=2/5(2r-3)+3/2

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Solution for 1/2(4r+1)-r=2/5(2r-3)+3/2 equation: 


r in (-oo:+oo)

(1/2)*(4*r+1)-r = (2/5)*(2*r-3)+3/2 // - (2/5)*(2*r-3)+3/2

(1/2)*(4*r+1)-((2/5)*(2*r-3))-r-(3/2) = 0

(1/2)*(4*r+1)+(-2/5)*(2*r-3)-r-3/2 = 0

1/2*(4*r+1)-2/5*(2*r-3)-r-3/2 = 0

(1/2*2*(4*r+1))/2+(-2/5*2*(2*r-3))/2+(2*(-r))/2-3/2 = 0

1/2*2*(4*r+1)-2/5*2*(2*r-3)+2*(-r)-3 = 0

12/5*r-2*r-3+17/5 = 0

2/5*r-3+17/5 = 0

2/5*r+2/5 = 0

(2/5*r+2/5)/2 = 0

(2/5*r+2/5)/2 = 0 // * 2

2/5*r+2/5 = 0

2/5*r+2/5 = 0 // - 2/5

2/5*r = -2/5 // : 2/5

r = -2/5/2/5

r = -1

r = -1

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