Y add -48.900000000000006 mul sub mul 0.316 mul sqrt add 87.30000000000001 mul 7.63 x_4 add mul 0.20600000000000002 x_6 mul -0.134 inv add 0.642 mul -0.24 x_7 mul 3.6 x_5 div mul pow2 add -0.876 mul -6.23 div x_0 x_3 div x_3 x_2 x_1