Y add -0.597 sub mul 67.8 x_0 mul -6.7700000000000005 mul add sub sub mul -0.47500000000000003 div x_4 add add mul -80.60000000000001 x_1 sub mul 21.0 x_2 mul 9.0 x_2 mul 0.08700000000000001 x_3 mul -0.22 pow2 sub mul -0.177 x_0 mul 0.974 inv sub mul 28.200000000000003 x_7 mul -5.26 x_7 mul 0.56 x_6 mul 0.352 x_5 x_7