Seeking help finding inverse of a matrix

[DigitalSplendid]

 

[Steven G]

a₃₃ is just a real number.
So if 6a₃₃= 3a₃₃, then a₃₃ must be 0.

How can 6a₃₃ and 3a₃₃ both equal 1/2????

The only number that you can multiply by 3 and 6 and get the same answer is 0

The 2nd equation has the wrong matrix on the right side of the equal sign.

 

[DigitalSplendid]

a₃₃ is just a real number.
So if 6a₃₃= 3a₃₃, then a₃₃ must be 0.

How can 6a₃₃ and 3a₃₃ both equal 1/2????

The only number that you can multiply by 3 and 6 and get the same answer is 0

The 2nd equation has the wrong matrix on the right side of the equal sign.

Sorry, it will be 6a₃₃= 3.

 

[Steven G]

You need to continue reducing the left matrix until you get to the identity matrix. The right hand matrix will be the inverse.