Răspuns :
a+b= 23.147
b= 23.105+6a
-----------------------------------
a+(23.105+6a)=23.147
7a+23.105=23.147
7a=23.147-23.105
7a=42
a=42/7==>6
b=23.105+6x6==>23.105+36= 23.141
Verificam : 6+23.141= 23.147 adevarat
a+b= 23.147
b= 23.105+6a
-----------------------------------
a+(23.105+6a)=23.147
7a+23.105=23.147
7a=23.147-23.105
7a=42
a=42/7==>6
b=23.105+6x6==>23.105+36= 23.141
Verificam : 6+23.141= 23.147 adevarat