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Sagot :

Bonjour

Pour x = 3 ; y = 4 ; z = 5

A = x - (y + z)

A = 3 - (4 + 5)

A = 3 - 9

A = - 6

Pour x = - 1 ; y = 3 ; z = - 2

A = x - (y + z)

A = - 1 - (3 - 2)

A = - 1 - 1

A = - 2

Pour x = - 7 ; y = - 5 ; z = 4

A = x - (y + z)

A = - 7 - (- 5 + 4)

A = - 7 - (- 1)

A = - 7 + 1

A = - 6

Pour x = - 4 ; y = - 1 ; z = - 8

A = x - (y + z)

A = - 4 - (- 1 - 8)

A = - 4 - (- 9)

A = - 4 + 9

A = 5.

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