Question

daca intr-o clasa stau cate 2 elevi intr-o banca raman 4 elevi in picioare iar daca stau cate 3 elevi raman raman 2 banci libere . Cate banci si cati elevi sunt?

Answer 1

E=2B+4
E=3b-3-3

2B+4=3B-6
B=10
E=10*2+4=24

Answer 2

$Notam~e = elevi$
$Notam ~b=banci$
$e=2b+4$
$e=3b-3-3$
$2b+4=3b-6$
$3b-2b=6+4$
$\boxed{b=10}$
$e=10*2+4$
$e=10+4$
$\boxed{e=24}$