解
If you double a number and then add 20 , you get 4/7 of the original number. What is the original number?
解
解答ステップ
Represent the number with
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人気の例
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.Find two numbers whose sum is 92, if the first is 4 more than 7 times the second.A positive number is one-half another number. The sum of the numbers is 18 less than the square of the smaller number. What are the numbers?