นิพจน์ 41: StartFraction, "A" Subscript, "F" , Baseline Over "b" , EndFraction equals StartFraction, "c" minus "A" Subscript, "F" , Baseline Over "a" , EndFractionAFb=c−AFa
41
นิพจน์ 42: "A" Subscript, "F" , Baseline equals StartFraction, "b" "c" Over "a" plus "b" , EndFractionAF=bca+b
42
นิพจน์ 43: "c" minus StartFraction, "b" "c" Over "a" plus "b" , EndFraction equals "F" Subscript, "B" , Baselinec−bca+b=FB
43
นิพจน์ 44: "F" Subscript, "B" , Baseline equals StartFraction, "a" "c" Over "a" plus "b" , EndFractionFB=aca+b
44
นิพจน์ 45: "F" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline plus StartFraction, "a" Subscript, 1 , Baseline "A" Subscript, "F" , Baseline Over "c" , EndFractionF1=A1+a1AFc
45
นิพจน์ 46: "F" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline plus StartFraction, "a" Subscript, 2 , Baseline "A" Subscript, "F" , Baseline Over "c" , EndFractionF2=A2+a2AFc
46
นิพจน์ 47: left parenthesis, "C" Subscript, 1 , Baseline plus "f" Subscript, 1 , Baseline "t" , "C" Subscript, 2 , Baseline plus "f" Subscript, 2 , Baseline "t" left brace, 7 greater than "K" greater than or equal to 6 , right brace , right parenthesisC1+f1t,C2+f2t7>K≥6
47
นิพจน์ 48: left parenthesis, "C" Subscript, 1 , Baseline plus "k" "f" Subscript, 1 , Baseline "t" , "C" Subscript, 2 , Baseline plus "k" "f" Subscript, 2 , Baseline "t" left brace, 5 less than "K" less than 6 , right brace , right parenthesisC1+kf1t,C2+kf2t5<K<6
