bonjour aidez mok svp​

Réponse :

Bonsoir

Explications étape par étape

A = 5 + (2x + 3)

A = 5 + 2x + 3

A = 2x + 8

B = 5x - (3 - 4x)

B = 5x - 3 + 4x

B = 9x - 3

C = (X- 4) - 6

C = X - 4 - 6

C = X - 10

D = (4x + 2) + (- 6x - 2)

D = 4x + 2 - 6x - 2

D = -2x

E = - ( - 3x - 1) + (x - 3)

E = 3x + 1 + x - 3

E = 4x - 2

F = 8x - (5x + 2) + ( 3 - 4x)

F = 8x - 5x - 2 + 3 - 4x

F = - x + 1

A )= 5 + (2x + 3)

A = 5 + 2x + 3

A = 2x + 8

B = 5x - (3 - 4x)       moins devant les () on change les signes

B = 5x - 3 + 4x

B = 9x - 3

C = (x - 4) - 6

C = x - 4 - 6

C = x - 10

D = (4x + 2) + (- 6x - 2)

D = 4x + 2 - 6x - 2

D = - 2x

E = - (- 3x - 1) + (x - 3)

E = 3x + 1 + x - 3

E = 4x - 2

F = 8x - (5x + 2) + (3 - 4x)

F = 8x - 5x - 2 + 3 - 4x

F = - x + 1