Part 1

Algebra Level 4

\[\large \left\{\begin{matrix} a^2+b^2+c^2+d^2+e^2=a(b+c+d+e) & & \\ 2011a+2012b+4026c+2014d+4030e=16232832 & & \end{matrix}\right.\] Find the value of below expression. \[\frac{a+b+c+d+e}{9}\]

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