Bonjour j’ai besoin d’une réponse assez vite svp ,merci d’avance

Salut

[tex]\rule{6cm}{1mm}[/tex]

A = 13+(x-6)

A = 13+x-6

A = x+7

B = -5-(4-2x)

B = -5-4+2x

B = 2x-9

C = 10-(x+3)+(-3x+6)

C = 10-x-3-3x+6

C = -4x-13

D = (5+2x)-(-7-7x)

D = 5+2x+7+7x

D = 9x+12

E = x-8-(2+4x-(9-5x))

E = x-8-2-4x-9+5x

E = -19