/sci/ - Science & Math

One level of Tooling Workshops building requires an input of 30 units of wood and 20 units of iron, to produce an output of 60 units of tools. One level of Logging Camps building requires an input of 5 unit of tools to produce an output 60 units of wood. One level of Iron Mines building requires an input five units of wood to produce and output 20 units of iron.

i) To get a balanced economic equilibrium with no surplus or deficit of items of production of wood, units and tools, what factored form equation (if I can solve) must I solve?
ii) What factored form equation must I solve to get whole unit levels of buildings?