解答
Two times a number plus three times another number equals 4. Three times the first number plus four times the other number is 7. Find the numbers.
解答
求解步骤
Represent the numbers with :
A.T.Q.:
流行的例子
ten increased by the product of a number and 8 is at most 23Jeremiah inherited some money from his grandfather and put it in a bank account that earns 9% interest compounded monthly. After 7 years, Jeremiah had 600.00 in the bank account. How much interest did he earn?Four less than 8 times a number is the same as the number plus 10.Jack is 6 years older than Jill. If four years ago Jack was 3 years less than twice Jill's age, how old is Jill now?Charlotte works at a lab with a huge circular particle accelerator. It has been carefully engineered to have a 周长 of 12.56 miles. What is the accelerator's diameter?