In which of Problems 20, 22, 24, 26, and 28 is the number of leftmost ones equal to the number of variables?

Data from Problem 20

Write the solution of the linear system corresponding to each reduced augmented matrix.

Data from Problem 22

Write the solution of the linear system corresponding to each reduced augmented matrix.

Data from Problem 24

Write the solution of the linear system corresponding to each reduced augmented matrix.

Data from Problem 26

Write the solution of the linear system corresponding to each reduced augmented matrix.

Data from Problem 28

Write the solution of the linear system corresponding to each reduced augmented matrix.

Transcribed Image Text:

1 000 0 1 0 0 001 0 0 001 -2 0 1 3