Answer:
2v - 2u
Step-by-step explanation:
We are to subtract u from v.
⇒ We have to take away 'u' from 'v'.
⇒ v - u
Doubling some quantity means make it twice as much. so, we just multiply the result by 2.
We get: 2(v - u)
⇒ 2v - 2u which is the required result.
