1/2(2r+8)=3-2r

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Solution for 1/2(2r+8)=3-2r equation: 


r in (-oo:+oo)

(1/2)*(2*r+8) = 3-(2*r) // - 3-(2*r)

(1/2)*(2*r+8)+2*r-3 = 0

1/2*(2*r+8)+2*r-3 = 0

1/2*(2*r+8)+2*r-3 = 0

3*r-3+4 = 0

3*r+1 = 0

3*r+1 = 0

3*r+1 = 0 // - 1

3*r = -1 // : 3

r = -1/3

r = -1/3

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