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Sagot :

VINS

bonjour

a.  4 x = 1.8

    x =  0.45

b.  2 x = - 54

     x = - 27

c.  10 x = 56

    x =  5.6

a. 3*0,6=1,8 donc x=1,8:4=0,45.
b. -9*6=-54 donc x=-54:2=-27
c. 8*7=56 donc x=54:10=5,4

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