|Bb Bb Bb Bb Bb Bb Bb Bb Bb Bb Bb / Group 1 X C File | C:/Users/Abdifatah/Downloads/MATH1722_Final_Exam_2021_01.pdf.pdf Sign in | | V Draw 2 | | Read aloud + 13 of 20| | ED O MATH1722 FIRST SEMESTER EXAMINATION 2021 13 O 8. Consider the system of linear equations + X1 + 12 - 13 = 4, X1 - 212 + 313 = -6, 2x1 + 312 + 23 = 7. a) Write the system of linear equations as a matrix equation and hence identify the coef- ficient matrix A, the variable vector x and the constant vector b. [1 mark] b) Solve the system of linear equations by using the Gauss-Jordan elimination method on the augmented matrix [A | b]. [3 marks] 13.C Q Search ENG 3:53 AM Mostly cloudy US 6/07/2023 3|Bb Bb Bb Bb Bb Bb Bb Bb Bb Bb Bb Group 1 X C File | C:/Users/Abdifatah/Downloads/MATH1722_Final_Exam_2021_01.pdf.pdf Sign in | | V Draw ~ 2 | | Read aloud + 14 of 20| | ED O O + MATH1722 FIRST SEMESTER EXAMINATION 2021 14 c) Solve the system of linear equations by first finding A~ [Hint: your answer should be the same as Part b.] [4 marks] 13.C Q Search ENG 3:54 AM Mostly cloudy US 6/07/2023 3