Răspuns :
( [tex] \frac{5x}{2} [/tex] + x ) : (7x) => [tex]( \frac{5x}{2} + \frac{2x}{2} ) :(7x)[/tex] => [tex] \frac{7x}{2} [/tex] × [tex] \frac{1}{7x} [/tex]
Se simplifica 7x si ramane [tex] \frac{1}{2} [/tex]
Se simplifica 7x si ramane [tex] \frac{1}{2} [/tex]