解答
解答
求解步骤
Translate the problem into an equation:
化简
流行的例子
If 15 is added to 4 times a number, the result is 171. Find the number.Suppose that when your friend was born, your friend's parents deposited 4000 in an account paying 4.5% interest compounded quarterly. What will the account balance be after 19 years?The diameter of a circle is 7 ft. Find its 周长 in terms of pi pithrice the number decreased by fourthe sum of two numbers is 24 and their 差集 is 2. what are the numbers?