On the application of distance, speed and time in seventh grade mathematics

Let the distance between Party A and Party B be X kilometers. According to the meaning of the question, the equation is: (x+8)/12-x/10 =10/60. Multiplying both sides of the equation by 60 at the same time gives: 5(x+8)-6x= 10, that is 5x+40-.

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We know that out of 100, 60 points pass and 80 points are excellent. The math test paper of the college entrance examination 150, so at least I got a pass, one.

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