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Sagot :

Salut !!

Réduisons si possible :

a.

A= 3x+5x

A= 8x

B= 4+6x

B= 6x+4

C= 7x-3x

C= 4x

D= x+4+5x-3

D= 6x+1

E= 12-8x

E= -8x+12

F= 2+8x+4-5x-6

F= 3x

b.

U= a+5+a-3

U= 2a+2

V= 2+b+5+b-7+b

V= 3b

W= c+d-4-c

W= d -4

X= a+b+c+5-a+b-4

X= 2b + c + 1

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