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Sagot :

MITCHALEXANDRINE2314

Exo 1

A)X+2=44

X=44-2

X=42

B)X+15=3

X=3-15

X=-12

C)X-1/5=3/5

X=3/5+1/5

X=4/5

D)X+3,6=4,2

X=4,2-3,6

X=0,6

EXO 2

A)3X=42

X=42÷3

X=14

B)10X=2,7

X=2,7÷10

X=0,27

C)7X=1

X=1÷7

X=1/7

D)-X=56,4

(X)=56,4

X=-56,4

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