# How do you solve #3y-z=-1#, #x+5y-z=-4#, # -3x+6y+2z=11# using matrices?

##### 1 Answer

Use Cramer's Rule (with Determinants) to get

#### Explanation:

Using the coefficient of

If

and

Cramer's Rule tells us that:

An interesting point to observe, because of the way computers perform (what is called "floating point") arithmetic the value of

which, in turn, cause

You must be prepared to apply reasonable interpretations when working with computer generated outputs.