Y add 0.789 sub mul 1.77 x_5 add mul -4.4 x_2 add sub mul 3.0 log add 6.99 mul -2.71 x_3 add mul -8.1 x_7 mul 2.75 inv add 4.83 mul 81.30000000000001 div x_4 inv add -68.3 mul -1.5 mul x_0 x_6 mul -17.400000000000002 x_1