bonjour
2 x - ( 5 x - 6 ) + ( - 3 x + 2 )
2 x - 5 x + 6 - 3 x + 2
= - 6 x + 8
2 x - 8 x*5 + 3 = 2 x - 40x + 3 = - 38 x + 3
- ( 3 x + 5 ) + ( - 2 x + 3 ) - x
= - 3 x - 5 - 2 x + 3 - x
= - 6 x - 2
- 3 x + 3 x + 2 x4
= 8
