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29-12-2021
Mathematics

contestada

soit a+b=-6,2 calculer
e=(a+4,5)-(-b-1,7)
f=12-(a-4)+(3-b)

Respuesta :

Аноним Аноним

29-12-2021

Answer:

e=0

f=25,2

Step-by-step explanation:

e=a+4,5+b+1,7

= (a+b)+4,5+1,7

= -6,2+6.2

= 0

f=12-a+4+3-b

= -(a+b)+19

= 6,2+19

= 25,2

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