Bonjour !
A = 3(x + 6) + 2
A = 3*x + 3*6 + 2
A = 3x + 18 + 2
A = 3x + 20
B = 4 + 3(2y - 2)
B = 4 + 3*2y - 2*3
B = 4 + 6y - 6
B = 6y - 2
C = 7(2x + 2) - 6
C = 7*2x + 7*2 - 6
C = 14x + 14 - 6
C = 14x + 8
D = 9(x - 6) + 2x
D = 9*x - 6*9 + 2x
D = 9x - 54 + 2x
D = 11x - 54
E = 3,5(2 - x) + 8,2
E = 3,5*2 - 3,5*x + 8,2
E = 7 - 3,5x + 8,2
E = -3,5x + 15,2
F = 2(3 + 5x) + 8(7 - x) + 4(x - 1)
F = 2*3 + 2*5x + 8*7 - x*8 + 4*x - 4*1
F = 6 + 10x + 56 - 8x + 4x - 4
F = 6x + 58
J'espère t'avoir aidé. Bon courage !
