Y add -63.7 div x_1 mul add mul -9.34 x_1 mul 0.096 x_4 add mul 50.900000000000006 tan sub mul -77.5 x_0 mul -5.5 x_2 mul 4.7 tan sub mul 0.13 tan add -0.549 mul 83.10000000000001 mul x_5 x_3 mul 1.51 x_2