Steps to Solve Circuit using Mesh Analysis:
i) For a given planar circuit, convert each current source, if any, into voltage source,
ii) Assign a mesh current to each mesh. The direction for each mesh current can be marked arbitrarily, however if same direction is considered for all mesh currents, then the resulting equations will have certain symmetry properties.
iii) Write KVL equation for each mesh. The equations will have terms with currents on one side and constant on the other side.
iv) Solve the resulting set of simultaneous algebraic equations and find the mesh currents.
v) Using mesh currents then find the branch currents and branch voltages.