Converting 3x10 array to a 1X30 array to run a Match formula

Say I have 3 columns of data: A1:C10 and I want to run a Match() function on them all together to see if I get a match any one those cells, say the value of have in X1.

Since, Match only allows a One-Column lookup array.. is there a way to "concatenate" or "append" the 3 columns together within a formula so now I would be looking to Match in an array that is 1 column * 30 rows?

Basically want to convert =Match(X1,A1:C10,0) to =Match(X1,A1:A30,0) without moving around the raw data in the sheet.

And I want to avoid doing an AND or OR formula that uses 3 separate MATCH() for each column.

I have a hunch that the MMULT or MMULT/TRANSPOSE functions are involved, but can't seem to get it right.

Thanks.