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Four times the sum of a number and 3 is equal to 9.the 差 between a number and three times that number is 17. what is the number?Dale has 2,000 to invest. He has a goal to have 4,800 in this investment in 12 years. At what annual rate compounded continuously will Dale reach his goal?The sum of two numbers is 94. The Difference of the two numbers is 56. What are the two numbers?The sum of two integers is 225 , and the larger number is 15 more than 5 times the smaller number. Find the two integers