Bonsoir
( 4 x +3 ) - ( x + 5 ) = 4 x + 3 - x - 5 = 3 x - 2
7 x - ( 3 + 4 x ) = 7 x - 3 - 4 x = 3 x - 3
( 3 + 4 x ) - 7 x = 3 + 4 x - 7 x = - 3 x + 3
6 x - 3 - ( 3 x - 6 ) = 6 x - 3 - 3 x + 6 = 3 x + 3
- ( 4 x + 5 ) - ( - x ) = - 4 x - 5 + x = - 3 x - 5
4 x + 3 - ( - 3 + 5 x ) = 4 x + 3 + 3 - 5 x = - x + 6
