Y add 2.77 div sub mul -39.0 mul add mul 0.215 x_3 mul -39.5 div add mul 25.3 inv add -90.60000000000001 mul 62.300000000000004 x_4 mul -9.22 x_1 x_2 x_7 sub mul 3.13 exp add -0.039 mul -0.338 x_5 mul -0.9 div x_0 x_6 exp add -0.004 mul -59.6 x_4