Y add 7.3100000000000005 mul div mul sub mul -0.777 mul add mul 8.47 x_5 mul 99.60000000000001 x_2 sub mul 0.177 mul x_6 x_4 add add mul -0.5 x_3 mul 83.10000000000001 x_6 mul -6.6000000000000005 x_7 mul 8.05 x_1 x_0 x_6 pow3 add 0.754 mul -0.293 x_3