![\"\"](\"http://c4anything.com/userfiles/image/steps_images/step1.JPG\")
For subtracting matrices, their dimension should be equal.
\First write the dimension of the matrix.
\The dimensions of matrix D and B are 3×2.
\The operation (D – B) is possible.
\![\"\"](\"http://c4anything.com/userfiles/image/steps_images/step2.JPG\")
Perform the operation D-B
\\
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4b9b8e5b33c24d45220832dd3c3f2186.png\")
(Substitute the values of D and B)
\
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9fbee035338d27165a52f0a53fa2b7c6.png\")
(Subtract corresponding elements)
\
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=946c1941e25060c5a09bf44113317c96.png\")
(Simplify) \ \
![\"\"](\"http://c4anything.com/userfiles/image/steps_images/solution.JPG\")
D - B ![\"\"](\"http://c4anything.com/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=946c1941e25060c5a09bf44113317c96.png\")
\
\
.
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