5. Identify the property that justifies the missing step in the proof below.
Statements
Reasons
1. 3x - (x + 4) = 6
1. Given
2. 3x-x-4 = -6
2. Distributive property
3. 2x - 4 = -6
3. Combine like terms
4. 2x = -2
4. ?
5. r=-1
5. Division property of equality