Your answer should be the 3rd choice. There is no solution.
Step-by-step explanation:
All the 5 rows of the coefficient matrix (since it is of order 5×8) will have a pivot position. The augmented matrix obtained by adding a last column of constant terms to the 8 columns of the coefficient matrix will have nine columns and will not have a row of the form [0 0 0 0 0 0 0 0 1]. So the system is consistent.
Q1
Answer:

Step-by-step explanation:

explanation for second step:
you divide each side by 3 to get rid of the '3' in '3x'
Answer:x=-4 and x=4
Step-by-step explanation:
Took the assignment on edg 2020
What’s the subject?
20 characters really???