Two crates contain apple's, pears and oranges. there are 184 apples and pears in crate one and 248 apples and oranges in the second crate. there are 3 times as many oranges as pears. how many apples are there altogether?

There are 152 apples.

The explanation is shown below:

- You need to write the following three equations, where is the the number of apples, is the number of pears and is the number of oranges:

1)

2)

3)

-  You must substitute the equation 3) into the equation 2):

- Now, you need to solve for in the equation 1) and then you must substitute it into :

- Solve for , as following:

- Therefore, there are 152 apples.