Krichhoff's rule, physics hw, suck.

The 5.00V- battery in the figure is removed from the circuit and replaced by a 20.00V- battery, with its negative terminal next to point b . The rest of the circuit is as shown in the figure


http://i39.tinypic.com/kd4isl.jpg

10 - i1*(2+3) = 20-i2*(1+4) = (i1+i2) * 10

i2 = i1+2
10-i1*5 = 20*i1-20
i1 = -0.4
i2 = +1.6

ie upper current 0.4A to the right, middle 1.6A to the left, bottom 1.2A to the right