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Sagot :

Bonjour,

7-9x-11=-8x+5

7-11=x+5

-4=x+5

x=-9

Bonjour

7 - 9x - 11 = - 8x + 5

- 9x + 8x = 5 - 7 + 11

- x = 9

x = - 9.

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