Question

the sum of 9 and twice a number use the variable n to represent the unknown number

Answer 1

Answer:

9 + 2n =

Step-by-step explanation:

9 + 2n =

Answer 2

Answer:

It would be 9+2n.

Step-by-step explanation:

Sinve you have not given us an equation, twice a number can also be reresented as 2n. Since 9 is the constant, you can say 9+2n.