Final answer:
To choose all equivalent expressions, simplify the given expressions by eliminating terms wherever possible. Combine like terms using the rules of algebra.
Step-by-step explanation:
To choose all equivalent expressions, you need to simplify the given expressions by eliminating terms wherever possible. Then, you need to check if the simplified expressions are reasonable. One way to simplify expressions is by using the rules of algebra. For example, if you have expressions like 2x + 4x and 6x - 10x, you can combine like terms to simplify them as 6x and -4x respectively.