11/2r+8=5/2r+20

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Solution for 11/2r+8=5/2r+20 equation: 


r in (-oo:+oo)

(11/2)*r+8 = (5/2)*r+20 // - (5/2)*r+20

(11/2)*r-((5/2)*r)-20+8 = 0

(11/2)*r+(-5/2)*r-20+8 = 0

3*r-12 = 0 // + 12

3*r = 12 // : 3

r = 12/3

r = 4

r = 4

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