Réponse :
Explications étape par étape
Bonsoir
A = 11 + 2(x - 6)
A = 11 + 2x - 12
A = 2x - 1
B = -3(2y - 4) - 2y
B = -6y + 12 - 2y
B = -8y + 12
C = 7 - 4(8 - 2a) + a
C = 7 - 32 + 8a + a
C = 9a - 25
D = -15 - 9(-5 + 3b)
D = -15 + 45 - 27b
D = 30 - 27b
E = -5(6 - 3z) - 9 + z
E = -30 + 15z - 9 + z
E = 16z - 39
F = 12x - 4(6 - 3x)
F = 12x - 24 + 12x
F = 24x - 24
Développe :
A = 3x - 5 + 5(2x - 2)
A = 3x - 5 + 10x - 10
A = 13x - 15
B = 4y - 6(3 - 2y) + 4(y - 1)
B = 4y - 18 + 12y + 4y - 4
B = 20y - 22
C = 5t^2 + 3(2t - 3) - 2t(t - 5)
C = 5t^2 + 6t - 9 - 2t^2 + 10t
C = 3t^2 + 16t - 9
