Y add -0.671 mul x_0 div x_2 div div sub mul -13.9 x_3 mul 39.400000000000006 x_6 x_5 div add mul -49.900000000000006 div x_6 x_0 mul -20.900000000000002 mul div x_3 x_1 x_7 sub mul 41.1 x_7 mul -6.79 x_4