Réponse :
Explications étape par étape
Bonjour
A = 1 + (2 - x)
A = 1 + 2 - x
A = 3 - x
B = (2x - 4) + (5x - 6)
B = 2x - 4 + 5x - 6
B = 7x - 10
C = 2,6x + (4 - 7x)
C = 2,6x + 4 - 7x
C = -4,4x + 4
D = (7 - 3x) + (2,4x - 5)
D = 7 - 3x + 2,4x - 5
D = -0,6x + 2
E = 5 + (2x + 3)
E = 5 + 2x + 3
E = 2x + 8
F = 5x - (3 - 4x)
F = 5x - 3 + 4x
F = 9x - 3
G = (x - 4) - 6
G = x - 4 - 6
G = x - 10
H = -(-3x - 1) + (x - 3)
H = 3x + 1 + x - 3
H = 4x - 2
