Răspuns :
a+b=175
b=a+1
a+a+1=175
2a=175-1
2a=174
a=174:2
a=87
b=87+1
b=88
V: 87+88=175
b=a+1
a+a+1=175
2a=175-1
2a=174
a=174:2
a=87
b=87+1
b=88
V: 87+88=175
a |-----|
b |-----|+1| } 175.
175 - 1 = 174 ( 2 segmente egale)
174 : 2 = 87 ( a)
87 + 1 = 88 (b)
Proba : 87 + 88 = 175.
b |-----|+1| } 175.
175 - 1 = 174 ( 2 segmente egale)
174 : 2 = 87 ( a)
87 + 1 = 88 (b)
Proba : 87 + 88 = 175.