Y add -0.8310000000000001 div mul x_5 add mul 0.68 mul x_0 mul sub mul 2.5 x_6 mul -0.936 x_4 sub add mul -0.968 mul x_5 x_0 mul -4.7700000000000005 x_3 mul -3.3000000000000003 x_3 mul 6.69 x_2 mul x_1 x_7