Question

the short key combination deletes a line in most text documents

Answer 1

Answer:

[Ctrl]+[Backspace]

Pressing [Backspace] deletes the characters to the left of the insertion point, one at a time. When you need to delete an entire word, press [Ctrl]+[Backspace]. This shortcut deletes text to the left of the insertion point one word at a time instead of one character at a time.

Answer 2

Answer:

Ctrl + backspace