Răspuns :
a × 6 + 242 : 2 - 900 = 97
a × 6 + 121 = 97 + 900
a × 6 + 121 = 997
a × 6 = 997 - 121
a × 6 = 876
a = 876 : 6
a = 146
a × 6 + 121 = 97 + 900
a × 6 + 121 = 997
a × 6 = 997 - 121
a × 6 = 876
a = 876 : 6
a = 146
Notez numarul cu a
a x 6 + 242 : 2 - 900 = 97
a x 6 + 121 = 97 + 900
a x 6 + 121 = 997
a x 6 = 997 - 121
a x 6 = 876
a = 876 : 6
a = 146
a x 6 + 242 : 2 - 900 = 97
a x 6 + 121 = 97 + 900
a x 6 + 121 = 997
a x 6 = 997 - 121
a x 6 = 876
a = 876 : 6
a = 146