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The sum of seven tiems a number and 5 more than the number is the same as the différence between-25 and twice the number. What is the number?If you double a number and then add 20 , you get 4/7 of the original number. What is the original number?The second of two numbers is 5 more than twice the first. Their sum is 80. Find the numbers.The sum of two numbers is 45. The first is 9 less than the second. Find the numbers.The sum of two numbers is 172. The first is 8 less than 5 times the second. Find the first number.