- (a - x - 3) - (x - a + 2) =-a+x`+3-x-a-2=1
- (1,53 - x + 1) - (x - a - 2,53) =-1,53+x-1-x+a+2.53=a
-(a - x) - (5,1 + x) + a - 5,1 =-a+x-5.1-x=-5.1-a
(a + 3,3 - a) - (3,3 + x) =a+3.3-a-3.3-x=-x
–1,8 – (5,2 – m) =-1.8-5.2+m=-7+m
- (2,43 + x - b) - (2,43 + b - x) =-2.43-x+b-2.43-b+x=-4.86
- (1 - x) - (5,1 + x) =-1+x-5.1+x=-6.1+2x
– (2,3 + k) + (4,3 + k) =-2.3-k+4.3+k=2
(k – 3,4) – (7,6 – k) =k-3.4-7.6+k=-11+2k
(2,7 + a) – (–3,3 + a) =2.7+a+3.3-a=6