# How do you solve the system #r+s+t=15, r+t=12, s+t=10# using matrices?

##### 1 Answer

Feb 2, 2018

#### Answer:

#### Explanation:

Perform the Gauss Jordan elimination on the augmented matrix

I have written the equations not in the sequence as in the question in order to get

Perform the folowing operations on the rows of the matrix

Thus