Question

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Answer 1

2v - 2u

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.