Răspuns :
(a+7)×2+(174:6)=100-3
(a+7)×2+29=97/-29
(a+7)×2=68/:2
a+7=34
a=34-7
a=27
(a+7)×2+29=97/-29
(a+7)×2=68/:2
a+7=34
a=34-7
a=27
(a+7) x 2+ (174 : 6) = 100 - 3
(a+7) x 2 + 29 = 97
(a+7) x 2 = 97 - 29
(a+7) x 2 = 68
a+7 = 68 : 2
a+7 = 34
a = 34 - 7
a = 27 → numarul
(a+7) x 2 + 29 = 97
(a+7) x 2 = 97 - 29
(a+7) x 2 = 68
a+7 = 68 : 2
a+7 = 34
a = 34 - 7
a = 27 → numarul