Răspuns :
a=nr. l consumat in prima zi
b=nr.l cinsumat in a doua zi
c=nr l cinsumat in a treia zi
a+b+c=334
a×3=b
b+278=c
si de aici inlocuiesti in
a+b+c si afli pe fiecare
b=nr.l cinsumat in a doua zi
c=nr l cinsumat in a treia zi
a+b+c=334
a×3=b
b+278=c
si de aici inlocuiesti in
a+b+c si afli pe fiecare
x+y+z=334
y=3x
y=z-278=>z=y+278
x+3x+3x+278=334
7x=334-278=>x=56/7=>x=8
y=3x=>y=24
z=y+278=>y=302
y=3x
y=z-278=>z=y+278
x+3x+3x+278=334
7x=334-278=>x=56/7=>x=8
y=3x=>y=24
z=y+278=>y=302