Y add -8.18 sub sub mul 0.083 div x_0 add mul -1.02 x_6 mul 0.5690000000000001 x_5 mul -0.552 div div x_7 div sub mul 52.400000000000006 x_3 mul -55.900000000000006 x_1 x_4 x_2 sub mul -9.23 x_5 mul -0.058 inv add 0.046 mul -0.098 x_1