Răspuns :
Răspuns:
a+186=ax3
a+186=3a
3a-a=186
2a=186
a=186:2
a=93
verificare 93+186=93x3
279=279
Răspuns:
a+186=ax3
a+186=3a
3a-a=186
a=186:2
a=93
verificare
93+186=93x3
216=216
Răspuns:
a+186=ax3
a+186=3a
3a-a=186
2a=186
a=186:2
a=93
verificare 93+186=93x3
279=279
Răspuns:
a+186=ax3
a+186=3a
3a-a=186
a=186:2
a=93
verificare
93+186=93x3
216=216