👤

28/x = 21/7
Aflati x


Răspuns :

21x=7*28
x=196/21 (simplificam prin 7)
x=28/3
[tex] \frac{28}{x} = \frac{21}{7} \\ 28x=3 \\ x= \frac{28}{3} \\ \boxed{x=9,(3)}[/tex]