5r+45/20=2r-6/2

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Solution for 5r+45/20=2r-6/2 equation: 


r in (-oo:+oo)

5*r+45/20 = 2*r-(6/2) // - 2*r-(6/2)

5*r-(2*r)+45/20+6/2 = 0

5*r-2*r+45/20+6/2 = 0

3*r+21/4 = 0 // - 21/4

3*r = -21/4 // : 3

r = -21/4/3

r = -7/4

r = -7/4

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