First, let's solve the expressions within parentheses:
0,13 • 3 = 0,39
Now, let's substitute these values back into the original expression:
-(0,39 + 2,1) + (0,39 - 2,1) - 0,8= -(2,49) + (-1,71) - 0,8= -2,49 - 1,71 - 0,8= -4,2 - 0,8= -5
Therefore, -(0,39 + 2,1) + (0,13 • 3 - 2,1) - 0,8 equals -5.
First, let's solve the expressions within parentheses:
0,13 • 3 = 0,39
Now, let's substitute these values back into the original expression:
-(0,39 + 2,1) + (0,39 - 2,1) - 0,8
= -(2,49) + (-1,71) - 0,8
= -2,49 - 1,71 - 0,8
= -4,2 - 0,8
= -5
Therefore, -(0,39 + 2,1) + (0,13 • 3 - 2,1) - 0,8 equals -5.