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Sagot :

NAPSAZZ13

Réponse:

bonjour

Explications étape par étape:

A = 3t +6t -8

= 3×3 + 6×3 -8

= 9 + 18 - 8

= 19

B = 5x (2) -3x +7

= 5×(-2)(2) -3×(-2) +7

= -20 +6 +7

= -7

C = -3y (2) -5y -8

= -3×(-3)(2) -5×(-3) -8

= 18 +15 -8

= 25

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