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Sagot :

Réponse :

Bonsoir,

8x+3=3x+9

8x+3-3=3x+9-3

8x=3x+6

8x-3x=3x-3x+6

5x=6

x=6/5

2x-3=-3x+2

2x-3+3=-3x+2+3

2x=-3x+5

2x+3x=-3x+5+3x

5x=5

x=1

Bonjour

pour a

8x3=3x+9

8x -3x=9-3

5x =6

X=6/5

pour b

2x-3-3x + 2

2x+3x = 2+3

5x = 5

X =1

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