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Sagot :

Bonjour

x - (7x + 18) ≥ 3x - 7

x - 7x - 18 ≥ 3x - 7

x - 7x - 3x ≥ - 7 + 18

- 9x ≥ 11

x ≤ - 11/9.

Bonjour,

x-(7x+18)  > 3x-7

x-7x -18  > 3x-7

-6x -18  >   3x-7

-18 +7 >  3x+6x

-11 > 9x

x < -11/9

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