# 2024 question 17

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20/24Select one:a. {(-1, 2)}b. {(-1, -2)}c. {(2, 1)}d. {(-2, -1)}The correct answer is: {(-2, -1)}Question 17Correct8.75 points outof 8.75Solve the system using Gaussian elimination or Gauss-Jordan elimination. 5x- 7y= -3 -6x+ 5y= 7
3/5/2019Graded Exam #421/24Question 18Perform the elementary row operation on the given matrix. Correct8.75 points outof 8.75-5R + R → R Select one:a. b. c. d. The correct answer is: 133
3/5/2019Graded Exam #4Question 19Correct8.75 points outof 8.75Solve the system using Gaussian elimination or Gauss-Jordan elimination. -3x- 7y+ 7z= 71 -2x+ 7y- 3z= -22 -3x- 9y+ 9z= 87
3/5/2019Graded Exam #423/24Question 20Correct8.75 points outof 8.75For the given augmented matrix, determine the number of solutions to the corresponding system ofequations.
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