Răspuns :
(X + 7) : 5 - 14 = 6
(X + 7) : 5 = 6 + 14
(X + 7) : 5 = 20
X + 7 = 20 x 5
X+ 7 = 100
X= 100 - 7
X= 93
93+7=100:5=20-14=6
(X + 7) : 5 = 6 + 14
(X + 7) : 5 = 20
X + 7 = 20 x 5
X+ 7 = 100
X= 100 - 7
X= 93
93+7=100:5=20-14=6