Subtracting Matrices

This is also quite simple but don't let the negative sign and minus sign confuse you when working this (Remember COPY-CHANGE-CHANGE) Also check to see if both matrices have the same dimensions. If they don't, the answer is not defined. If they have the same dimensions, then here is how you work the problem.

Example: [7 3 -4] - [6 4 3]

First, check to see if the dimensions are the same for both.

Second, determine what dimesions should be placed for your answer.

Finally, subtract the corresponding column or row with the corresponding row or column.

7 -6=1

3-4=-1

-4-3=-7

The answer is [1 -1 -7]