Solve the problem. See Example
Bon Jovi and Roger Waters had the two top-grossing North American concert tours in 2010, together generating $197.7 million in ticket sales. If Roger Waters took in $18.7 million less than Bon Jovi, how much did each tour generate? (Source: Pollstar.)
EXAMPLE Finding Numbers of Olympic Medals
At the 2010 Winter Olympics in Vancouver, Canada, the United States won 14 more medals than Norway. The two countries won a total of 60 medals. How many medals did each country win? (Source: World Almanac and Book of Facts.)

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