× = ÷3= 3.2- = + =
0× + = ÷ = × 5× ÷5× =
① + + +
② × + ÷6
③(1- × )÷
④ × ÷( - )
⑤[ -( - )]÷
最后向北偏西30°方向行驶24千米到达终点。
(方程解)