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hey Résoudre chaque inéquation.
a. 5x > 12
b.2x < -10
C-3x < 12
d.-7x > -21
e. -x < 11
f. -8x>-4
aidé moi svp​

Sagot :

HAANA92

Réponse:

Bonsoir,

a. 5x>12

5x÷5>12÷5

x>12÷5

x>12/5

b. 2x<-10

2x÷2<-10÷2

x<-10÷2

x<-5

c. -3x<12

-3x÷(-3)>12÷(-3)

x>12÷(-3)

x>-12÷3

x>-4

d. -7x>-21

-7x÷(-7)<-21÷(-7)

x<-21÷(-7)

x<21÷7

x<3

e. -x<11

-1×(-x)>-1×11

x>-1×11

x>-11

f. -8x>-4

-8x÷(-8)<-4÷(-8)

x<-4÷(-8)

x<4÷8

x<4/8

Voilà ;)

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