解答

解答

求解步骤
Represent the numbers with :
A.T.Q.:
解

流行的例子

5 years from now Steven will be twice as old as Miguel.The current sum of the ages of Steven and Miguel is 83.How old is Miguel right now?what number is 70% of 120Five years after Jari’s age now doubles, he will be 27. How old is Jari now?7540 is greatest number and 4057 is the smallest numberThe sum of a number times 6 and 15 is at most 20