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Sagot :

Réponse :

salut

a)

3x+2<=x-14

2x<=-16

x<=-8

S= ] -oo ; -8 ]

b)

-2x-5>4x+31

-6x>36

x< -6

S=] -oo ; -6 [

c)

9x+19<= -x+51

10x <= 32

x <= 16/5

S= ] -oo ; 16/5 ]

d)

-3x+5<-x+17

-2x<12

x> -6

S= ] -6 ; +oo [

Explications étape par étape

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