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Sagot :

LOLO5

5x-x+2\3=4+2x-1\7

5x-x+1,5=4+2x-7

5x-x+1,5-1,5=4+2x-7-1,5

5x-x=-4,5+2x

4x-2x=4,5+2x-2x

2x=4,5

2Xx/2=4,5/2

x=9/4

x=2,25

Voilà !!!

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