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doar 25 cine


ajutor va rog!!!


Doar 25 Cine Ajutor Va Rog class=

Răspuns :

5a+2b=36

a/4=b/5=c/12=k

a=4k

b=5k

c=12k

5×4k+2×5k=36

20k+10k=36

30k=36

k=36/30

k=6/5

a=4×6/5

a=24/5

b=5×6/5

b=6

c=12×6/5

c=72/5