a) 3Tablete.........................2 telefoane...................2200
1 tableta=3 telefoane
3x3 telefoane.....................2 telefoane..................2200
11 telefoane........................2200
1 telefon-------------------------200
1 tableta.............................3x200=600
b) 2t cartofi..............................3t ceapa..............8100
2t cartofi..............................7t ceapa..............14900
2t cartofi..............................7t ceapa..............14900 -
2t cartofi..............................3t ceapa..............8100
_____________________________________________
0...............................................4t ceapa..............6800
1t ceapa.............6800/4=1700
2t cartofi..................................3x1700.................8100
2t cartofi....................................8100-4800=3300
1t cartofi....................................1650
cam asti sunt pasii