Search and replace data

Good Day, For an assignment:

I have a matrix: R55 = [2,4,6,9,11;7,8,9,10,6;1,2,6,4,5;,6,9,8,5,6;1,6,5,7,5]. I need to search through matrix R55 to find the specific element of: SE = 6, and indicate where these elements are located using 1) For loops and if statements 2) Logical matrices 3) The find function.

Thanks in advance!

[Chris]

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