Response to the following problem:
For the network of Fig.
a. Write the equations necessary to solve for the branch currents.
b. By substitution of Kirchhoff's current law, reduce the set to three equations.
c. Rewrite the equations in a format that can be solved using third-order determinants.
d. Solve for the branch current through the resistor R3.
![2186_the network.jpg](https://secure.tutorsglobe.com/CMSImages/2186_the network.jpg)