Answer:
- 5x
Explanation:
note that + (-) = -
2.5x + (- 5x) - 2.5
= 2.5x - 5x - 2.5 ← collect like terms
= 2.5 - 2.5 - 5x
= 0 - 5x
= - 5x
4.7m questions
6.0m answers