Question

vă rog!!!!!!!!!!!!!!!!!!!!!​

Answer 1

notam:

elevi=e

banci=b

__________

e=2b+5

e=3 *(b-2)

______________

3*(b-2)=2b+5

3b-6=2b+5+6

3b=2b+13

3b-2b=13

b=13

e=13*2+5

e=26+5

e=31

Raspuns

13 banci si 31 elevi

coroana?