Răspuns:
a+b-c
a)1/2+(-1/3)-1/4=
1/2-1/3-1/4
-1/12
a-(b-c)
1/2-(-1/3-1/4)
1/2-(-7/12)
1/2+7/12
13/12
-(a-b)-c
(1/2+1/3)-1/4
5/6-1/4
7/12
-(a+b)-(a-c)
-(1/2+(-1/3))-(1/2-1/4)
-(1-2-1/3)-1/4
-1/6-1/
-5/12
b) a+b-c
-1/6+1/3-(-1/12)
-1/6+1/3+1/12
1/4
a-(b-c)
-1/6-(1/3-(-1/12))
-1/6-(1/3+1/12)
-1/6-5/12
-7/12
-(a-b)-c
-(-1/2)-1/12
1/2-1/12
5/12
-(a+b)-(a-c)
-(-1/6+1/3)-(-1/6-(-1/12)
-0-(1/+1/12)
-1/4
c) a+b-c
-3+(-0.5)-(-0(3))
-3-0.5-0
-3.5
a-(b-c)
-3-(-0.5-(0.(3))
-3-(-0.5-0)
-3-(-0.5)
-3+0.5
-2.5
-(a-b)-c
-(-3-(0.5))-(-0(3))
-2.5-0
-2.5
-(a+b)-(a-c)
Aici m-am blocat nu mai stiu
Sper ca te-am ajutat cat de cat
Explicație pas cu pas
la c nu stiu daca e fix corect
