In the reaction xBrO−3+yCr3++zH2O→Br2+HCrO−4+H+. The values of x, y & z respectively in the balanced equation are
When 7xy+5yz−3zx, 4yz+9zx−4y and −3xz+5x−2xy are added, we get 5xy+9yz+3zx+5x−4y.