Lời Giải
Lời Giải
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Represent the number with
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Set up a system of linear equations, and then giải cho the indicated quantities.Four times the smaller of two numbers plus five times the larger number is-13 .Five times the smaller number minus five times the larger number is-5 .Find the numbers.Let x represent the smaller number. Let represent the larger number.five times the sum of a number and 3 is the same as 3 multiplied by 1 less then twice the numbermary is 5 years older than lily. if the sum of their ages together is 51, what are their ages?6 is 15% of what numberTony's age is 28 years older than Mack. 5 years ago, Tony was 5 times as old as Mack. Find their present ages.