Question

Nine times a number is 30 more than three times that number. Find the number

Answer 1

Hi there!

it would be 10.. if your asking for what multiply by 9 and 3 more than the number.

1.Find common multiply:

`9,18,27,36,45,54,63,72,81,90,99`

`30,60,90,120`

2.Find what nine can multiply to and 30 can also:

`=90`

3.Divide two terms:

`90*9=10`

This means, the number would be 10.

Answer 2

From this question, we can write

Let n be the number.

9n=3n+30

6n=30

n=5

We find that the number is 30.