# How do you write "Twice the the quantity a number and 3."?

##### 2 Answers

Dec 7, 2016

#### Answer:

#### Explanation:

a number and 3:

if the number is denoted

->

->

to have twice this whole quantity (instead of, for instance, only n being doubled:

put

->

then to double it, put a 2 before the whole expression (n+3)

->

the final expression:

Dec 7, 2016

#### Answer:

2(n + 3) is probably what you are looking for.

#### Explanation:

Twice the quantity usually means, "get ready for parentheses".

Inside the parentheses, expect a sum when the statement just says "and". So I would write 2(n + 3).