Y add -57.900000000000006 sub mul 3.39 x_0 mul 42.6 mul div sub mul 0.5690000000000001 x_6 mul -28.200000000000003 x_4 x_7 mul inv sub mul -63.400000000000006 x_3 mul -0.273 mul x_2 inv add 4.99 mul 6.3100000000000005 x_5 x_1