Răspuns :
Notam cu M si cu A pe cei doi baieti.
M+A=258 lei
M-92⇒A=M+54
M+A=258
M+M+54=258
2M+54=258
2M=258-54
2M=204
M=102
A=M+54
A=102+54
A=156
Mircea are 102 lei iar Andrei are 156 lei
M+A=258 lei
M-92⇒A=M+54
M+A=258
M+M+54=258
2M+54=258
2M=258-54
2M=204
M=102
A=M+54
A=102+54
A=156
Mircea are 102 lei iar Andrei are 156 lei
2a +92 +54 = 258
2a + 146 =258
2a = 112|:2
a = 56
Mircea are 56 +92 =148
Andrei are 56 + 54 = 110
Verificare : 110 +92 = 202
202 - 148 = 54
2a + 146 =258
2a = 112|:2
a = 56
Mircea are 56 +92 =148
Andrei are 56 + 54 = 110
Verificare : 110 +92 = 202
202 - 148 = 54