Write a system of equations to describe the following scenario.
What equipment is used to build the spaces you are planning in the city?
Almost every construction site uses cranes (for lifting heavy objects) and bulldozers (to move dirt).
Let x = the number of cranes and y = the number bulldozers.
The cost for rental equipment is $203 per day.
Crane rentals cost $22 per day and bulldozer rentals cost $23 per day. At the new building site, there are 9 total pieces of equipment.
How many of each rental item does this site have?