運算式 29: "J" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline left parenthesis, "J" Subscript, 1 , Baseline minus "D" Subscript, 1 , Baseline , right parenthesisJ2=m1J1−D1
equals=
1.51.5
29
運算式 30: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesism1x−D1=m2x−E1