👤

13-14:x=18-7 am nevoie de ajutor


Răspuns :

13-14:x=18-7
13-14:x=11
14:x=13-11
14:x=2
x=14:2
x=7
13-14:x=18-7
13-14:x=11
14:x=13-11
14:x=2
x=14:2
x=7