Exercises 8991 will help you prepare for the material
Chapter 4, Problem 4.1.251(choose chapter or problem)
Exercises 8991 will help you prepare for the material covered in the next section. The sum of two numbers, x and y, is 28. The difference between the numbers is 6. a. Write a system of linear equations that models these conditions. b. Solve the system and find the numbers.
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