95x=85x+288 You could add 288 to any side, it just shows that they're 288 miles apart. Let's subtract 85x from both sides. 10x=288 28.8=x It'll take 28.8 hours for the trains to meet. Let's make sure. 28.8×95 2,736 28.8×85 2,448 2,736-2,448 288 So, they'll meet up after 28.8 miles.