Răspuns :
x=bicicleta
y=calculator
z=televizor
x+y=3078=>y=3708-x
z+y=14.298=>z+3708-x=14.298
z-x=14.298-3708
z-x=10590
y=calculator
z=televizor
x+y=3078=>y=3708-x
z+y=14.298=>z+3708-x=14.298
z-x=14.298-3708
z-x=10590