Given x + y + 6x-4y + 13 = 0, find the value of (x + y) to the power of 2008 Such as the title, to the detailed process

Given x + y + 6x-4y + 13 = 0, find the value of (x + y) to the power of 2008 Such as the title, to the detailed process

X + 6x + y-4y + 13 = 0 (x + 6x + 9) + (y-4y + 4) - 9-4 + 13 = 0 (x + 3) + (Y-2) = 0, then x = - 3, and 2008 times of y = 2 (- 3 + 2) = (- 1) = 1