Răspuns:
Explicație pas cu pas:
x/5 = 4/3
x = 5*4/3 = 20/3
y/2 = 4/3
y = 2*4/3 = 8/3
x - y = 20/3 - 8/3 = 12/3 = 4
x/5=y/2=4/3
x/5=4/3=>3x=4·5=>x=20/3
y/2=4/3=>3y=2·4=>y=8/3
x-y=20/3-8/3
x-y=12/3=4
