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b in (-oo:+oo)
(2/3)*(b-(6/5))-(13/8) = 45/8-((6/5)*b) // - 45/8-((6/5)*b)
(2/3)*(b-(6/5))+(6/5)*b-(13/8)-(45/8) = 0
(2/3)*(b-6/5)+(6/5)*b-13/8-45/8 = 0
2/3*(b-6/5)+(6*b)/5-13/8-45/8 = 0
(2/3*5*8*(b-6/5))/(5*8)+(6*8*b)/(5*8)+(-13*5)/(5*8)+(-45*5)/(5*8) = 0
2/3*5*8*(b-6/5)+6*8*b-13*5-45*5 = 0
224/3*b-225-65-32 = 0
224/3*b-225-97 = 0
224/3*b-322 = 0
(224/3*b-322)/(5*8) = 0
(224/3*b-322)/(5*8) = 0 // * 5*8
224/3*b-322 = 0
224/3*b-322 = 0 // + 322
224/3*b = 322 // : 224/3
b = 322/224/3
b = 69/16
b = 69/16
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