(146+499) : x(1299-424) :25=78

pun coroana


Răspuns :

(146+499) : x(1299-424) :25=78
645 : x*875 :25=78
645 : x*35=78
645:35x=78
78x35x=645
2730x=645
x=645:2730
x=0,23(626373)