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Sagot :

TEAMCE

Bonsoir,

Calcule pour x = 5

B = 20x

B = 20 * 5

B = 100

Z = 9x

Z = 9 * 5

Z = 45

Calcule pour y = 10:

M = 5y + 3

M = 5 * 10 + 3

M = 50 + 3

M = 53

A = 8y - 25

A = 8 * 10 - 25

A = 80 - 25

A = 55

* = multiplication

Bonne soirée.

Réponse :

a) B = 20x

   B = 20 × 5

   B = 100

   Z = 9x

   Z = 9 × 5

   Z = 45

b) M = 5y + 3

   M = 5 × 10 + 3

   M = 50 + 3

   M = 53

    A = 8y - 25

    A = 8 × 10 - 25

    A = 80 - 25

    A = 55

Explications étape par étape :

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