Syntax for ArrayDeleteAtfunction

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I need to delete an entire row of a 2 dimensional arrayand cannot seem to get the syntax right.

Assume row = "x" and there are 4 y coordinates, i.e.,
ArrayDeleteAt(Arrayname, [x][1])
ArrayDeleteAt(Arrayname, [x][2])
ArrayDeleteAt(Arrayname, [x][3])
ArrayDeleteAt(Arrayname, [x][4])

Can someone help?
Thanks.