-4(2,5(-2/9) - 1,5) + 5,5(-2/9) - 8= -4(-5/9 - 1,5) - 5,5/9 - 8= -4(-5/9 - 9/6) - 5,5/9 - 8= -4(-35/18) - 5,5/9 - 8= -35/9 - 5,5/9 - 8= -40,5/9 - 8= -40,5/9 - 72/9= -112,5/9≈ -12,5
Therefore, the final answer is approximately -12.5.
-4(2,5(-2/9) - 1,5) + 5,5(-2/9) - 8
= -4(-5/9 - 1,5) - 5,5/9 - 8
= -4(-5/9 - 9/6) - 5,5/9 - 8
= -4(-35/18) - 5,5/9 - 8
= -35/9 - 5,5/9 - 8
= -40,5/9 - 8
= -40,5/9 - 72/9
= -112,5/9
≈ -12,5
Therefore, the final answer is approximately -12.5.