Y add -8.0 div sub mul -69.4 x_1 mul -3.7800000000000002 x_1 add mul -0.389 x_2 sub mul 0.34700000000000003 x_1 mul 3.11 inv add -0.645 mul -15.600000000000001 mul add mul -6.15 x_0 mul -57.900000000000006 x_3 x_1