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a) stiind ca x+y+z+24=48. determinati 15+2z+2y+2x


Răspuns :

Răspuns:

x+y+z+24=48|-24

x+y+z=24

24:3= 8

8×2= 16

16×2=32

15+32+32+32=47+32+32=79+32=111

cred ca e corect nu stiu sigur