Lời Giải
Lời Giải
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Translate the problem into an equation:
Ví dụ phổ biến
Chris's is 19 years older than Shelley. Five years ago, the sum of their ages was 129. How old are they now?the product of 12 and a number is 36Four subtracted from the product of 9 and a number is a most −30.Raffi is twice as old as Anoush. Five years from now the sum of their ages will be 64 . How old are Raffi and Anoush? Solution:two less than three times a number is nine