To determine which two expressions are equivalent, we can compare each pair and see if they can be simplified or rearranged to match the others.
-
7y - 3x:
- This expression is in the form of \(7y\) minus \(3x\).
-
−7y - 3x:
- This expression can be considered as \(-7y\) minus \(3x\), which is not equivalent to the first expression.
-
3x - 7y:
- This expression can be rearranged to \(-7y + 3x\) (or \(3x\) minus \(7y\)), but it does not match the first expression.
-
−7y + 3x:
- This is equivalent to \(3x - 7y\) as they are the same expression written differently due to the commutative property of addition.
The two equivalent expressions are:
- 3x - 7y
- −7y + 3x
So, the correct responses are: 3x - 7y and −7y + 3x.