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Sagot :

Bonjour ,

- 2 + - 4 + + 6 + - 1 + + 7

= -2-4+6-1+7

= -6+5+7

= 6

Bjr

A = -2 - 4 + 6 - 1 + 7

A = -6 +6 -1 + 7

A = -1 + 7

A = 6

Voilà !

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