# Eleven Pipers Piping

**Algebra**Level 1

Eleven pipers took a break from piping. One piper said "Hey everyone give me the possible values of x in this equation:

\( { x }^{ 2 }\quad -\quad 12x\quad +\quad 11\quad =\quad 11(x\quad -\quad 1) \)

If you got the 2 values of x, add them together."

What is the answer to the piper's problem?