Lời Giải
Lời Giải
Các bước giải pháp
Translate the problem into an equation
Solve the equation
Ví dụ phổ biến
Including a 10% sales tax, a new stereo costs 319. Find the cost of the stereo before tax.A boy is 10 years older than his brother. In 4 years, he will be twice as old as his brother. Find the present age of each.Kim is 6 years more than twice Timothy’s age. 2 years ago, Kim was three times as old as Timothy. How old was Kim 2 years ago?If Matthew deposited 700 into an account with an interest rate of 3%. How much will be in his account after 9 years?Two small planes start from the same point and fly in opposite directions. The first plane is flying 35 mph slower than the second plane. In 3 h, the planes are 795 mi apart. Find the rate of each plane.