-2(x-2)=2[x-4(x-2)+x]

Start from the inside and work toward the outside.

-2(x-2)=2[x-4(x-2)+x]

-2x + 4 = 2(x - 4x + 8 +x)

-2x + 4 = 2x - 8x + 16 + 2x

Combine like terms and solve for x.