SOLUTION: Last year, Greg's father weighed three times as much as Greg. Since then, Greg has gained 9kg and father has lost 4kg. Now his father weighs only twice as much as Greg. Find their

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Last year, Greg's father weighed three times as much as Greg. Since then, Greg has gained 9kg and father has lost 4kg. Now his father weighs only twice as much as Greg. Find their       Log On