解答
解答
求解步骤
Translate the problem into an equation:
求解
流行的例子
\ 62 decreased by twice a numberThe 差集 of two number is 13. The second number is five less than two times the first number. Write a system of equations and find the two numbers.The radius of a circle is 13 in. Find its 周长 in terms of pipi.If you borrow 2000 for 7 years at an annual interest rate of 15% , what is the total amount of money you will pay back?Devaughn is 7 years younger than Sydney. The sum of their ages is 49 . What is Sydney's age?