Y add -71.4 mul sub mul -10.200000000000001 div sub mul 0.963 x_5 mul 2.0300000000000002 x_3 x_0 mul 21.8 mul x_4 div div sub mul 70.9 x_3 add mul 89.0 x_7 mul 7.19 x_2 x_3 exp add 0.6940000000000001 mul -0.778 x_6 x_1