Răspuns :
Răspuns:
a+b=105=>a=105-b
0,8a+1,5b=98
0,8(105-b)+1,5b=98
84-0,8b+1,5b=98
0,7b=98-84
b=14:0,7=>b=20 borcane de 1,5kg
a=105-20=>a=85 borcane de 0,8kg
Răspuns:
a+b=105=>a=105-b
0,8a+1,5b=98
0,8(105-b)+1,5b=98
84-0,8b+1,5b=98
0,7b=98-84
b=14:0,7=>b=20 borcane de 1,5kg
a=105-20=>a=85 borcane de 0,8kg