Răspuns :
x-y= 96
x:y= 4 =>x= 4y
4y-y= 96
3y= 96
y= 96/3
y= 32
x= 4y= 4•32= 128
x= 128
y= 32
x:y= 4 =>x= 4y
4y-y= 96
3y= 96
y= 96/3
y= 32
x= 4y= 4•32= 128
x= 128
y= 32
x - y = 96
x : y = 4
x = 4y
4y - y = 96
3y = 96
y = 96 : 3
y = 32
x = 4 × 32 = 128
128 - 32 = 96
128 : 32 = 4