Question

3 supra a =b supra 5

Answer 1

3/a=b/5
a*b=3*5
a=3
b=5
a*b=15
verificare:
3/3=5/5

Answer 2

$\frac{3}{a}= \frac{b}{5}$

produsul mezilor=produsul extremelor

a×b=3×5

pentru a fi egalitate ⇒a=3 si b=5

verificare
3×5=3×5

sau in ecuatia data
$\frac{3}{3}= \frac{5}{5}$

15=15