| e)
Supprime
les parenthèses. |
x
+ (y + z) = |
x
+ y + z |
c
– (d + a) = |
c
– d – a |
a
+ (b – c) = |
a
+ b – c |
x
– (y – z) = |
x
– y + z |
b
+ (– c + d) = |
b
– c + d |
a
– (– b – c) = |
a
+ b + c |
c
+ (– a – d) = |
c
– a – d |
d
– (– a + b) = |
d
+ a – b |