Y add 9.0 sub sub mul -3.61 div sub mul -21.700000000000003 x_1 sub mul -7.640000000000001 x_3 mul -7.0600000000000005 x_3 sub mul 19.8 div x_2 x_0 mul -0.23500000000000001 x_0 mul 8.8 x_3 mul -5.8 x_2