Y add -9.93 div inv add -6.5 mul 4.98 x_1 div mul add mul 68.60000000000001 x_2 mul 31.0 x_6 div x_4 pow2 add -0.423 mul -0.893 x_3 sub mul -77.80000000000001 inv add 0.843 mul -4.82 x_5 mul 0.805 pow3 add -5.82 mul 6.07 x_0