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Sagot :

Bonjour,

A= x+1

4x-3x = x

-4+4 = 1

B= -2x -3

-3x+x = -2x

+2-5 = -3

C= -3x -8

D= -7x +6

E=  4x-12

4*x = 4x

4*-3 = -12

F= 3x+6

G= 3x-24 +5 = 3x- 19

H= 4 -8x +4 -4x= -12x +8

2*2 = 4

2*-4x = -8x

4*1 = 4

4*-x = -4x

4-8x +4 -4x =

-8x-4x = -12x

4+4 = 8

=> -12x +8

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