Let's simplify the given expression step by step:
(2,5-3,8)-(4,7-3,8) = -1,3 - 1,8 = -3,1
-4,4x2,5y = -11xy
-4,8x(-5y)(-20z) = 480xyz
5-(-x-7,2) = 5 + x + 7,2 = x + 12,2
Therefore, the final simplified expression is:
-3,1 - 11xy + 480xyz + x + 12,2 = 13,9x + 480xyz - 3,1 - 11y
Let's simplify the given expression step by step:
(2,5-3,8)-(4,7-3,8) = -1,3 - 1,8 = -3,1
-4,4x2,5y = -11xy
-4,8x(-5y)(-20z) = 480xyz
5-(-x-7,2) = 5 + x + 7,2 = x + 12,2
Therefore, the final simplified expression is:
-3,1 - 11xy + 480xyz + x + 12,2 = 13,9x + 480xyz - 3,1 - 11y