Y add 1.8 sub sub mul 9.370000000000001 mul mul sub mul -0.65 x_1 mul 0.7010000000000001 x_0 sub mul 5.5200000000000005 x_3 mul 0.38 div x_4 x_7 add mul 0.011 x_2 mul -7.08 x_1 add mul 66.5 x_6 mul -70.9 x_5 mul 54.6 x_8