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MEDIA ARITNETICA HELPPP​

MEDIA ARITNETICA HELPPP class=

Răspuns :

a+b/2= 7,5 |•2

a+b=15

a=b+3

b+3+b=15 |-3

2b=12 |:2

b=6

a=b+3=6+3=9

Raspuns:a=9 si b= 6