Expression 29: left parenthesis, "J" Subscript, 2 , Baseline minus "w" , right parenthesis left parenthesis, "l" minus 10 , right parenthesis equals 12J2−wl−10=12
29
Expression 30: "J" Subscript, 2 , Baseline equals StartFraction, 12 Over "l" minus 10 , EndFraction plus "w"J2=12l−10+w