Y add 6.5200000000000005 add mul -7.8500000000000005 x_6 add mul 0.6940000000000001 x_3 sub mul 7.4 mul add mul 0.513 mul add mul -67.4 x_4 mul -79.30000000000001 x_2 x_1 mul 0.02 x_0 x_5 mul 5.22 x_3