Respuesta :

Hey there! I'm happy to help!

Let's call our number n.

We have 3 times this n, so we can write it as 3 n.

And we increase it by 18, so we +18.

This gives us 3n+18.

Have a wonderful day! :D

Answer:

3x + 18

Step-by-step explanation:

Let x = number

3 times the number

3x

increased means add

3x + 18