甲、乙两人练习赛跑,甲每秒钟跑7米,乙每秒钟跑6.5米,甲让乙先

甲、乙两人练习赛跑,甲每秒钟跑7米,乙每秒钟跑6.5米,甲让乙先跑5米,设甲出发x秒钟后,甲追上乙,则下列四个方程中不正确的是( )
A.7x="6.5x+5"B.7x-5="6.5"C.(7-6.5)x="5"D.6.5x=7x-5

答案

B解析:
p;【解析】略

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