Question

Three times a number increased by nine​

Answer 1

Answer:

3n+9

Step-by-step explanation:

Answer 2

Answer:

3 times a number increased by nine is also written as 3x+9 explaination down!

Step-by-step explanation:

so as you asked

a number can be written as any constant like x, p, q ,r lets use x for now,

so 3 times is multiplying 3 times so

3×x

so its 3x

and increased by 9 is +9

so all together its

3x+9

thank you

hope it helps and if it does mark me as brainliest