Réponse :
Bonsoir
Explications étape par étape
A= -(-2x+2) +3x +9
A = +2x -2 +3x +9
A = 5x +7
B =-6x- (-7x+8) +2
B = -6x +7x -8 +2
B = +x -6
C =( 5x-1) +2-3x
C = 5x -1 +2 -3x
C = 2x +1
D = -5-7x +(2x+2)
D = -5 -7x +2x +2
D = -5x -3
E = -(8x+8) -9x-6
E = -8x -8 -9x -6
E = -17x -14
F= -(4x-9) +3x +8
F = -4x +9 +3x +8
F = -x +17
