Y add -0.28300000000000003 div add mul -51.7 x_0 sub add mul 9.790000000000001 x_2 mul 0.329 div x_3 sub mul 24.900000000000002 inv add -58.2 mul 7.48 x_0 mul -8.120000000000001 x_2 add mul -7.300000000000001 x_3 mul -0.318 x_3 x_1