If two vehicles arrive to an uncontrolled intersection at the same time:
The largest vehicle has the right-of-way.
The car on the left has the right-of-way.
The car on the left shall yield to the car on the right.
The car on the right shall yield to the car on the left.
If two vehicles arrive at the same time to an uncontrolled intersection, the driver on the left must yield to the driver on the right. The driver on the left may then proceed when it is safe to do so.