Y add 51.5 sub mul 27.700000000000003 x_5 sub mul -0.73 x_4 add mul 7.38 x_3 add mul 81.30000000000001 div div x_2 sub mul -42.800000000000004 x_1 mul 0.871 div div x_8 x_6 abs add 83.7 mul 0.294 mul x_7 x_0 x_4 mul -5.87 x_2