Question

Help me please. I'm so confused on this.

Answer 1

Answer:

3(5n-6)

Step-by-step explanation:

You want to find the common multiple between the two numbers.

Find a number that is divisible by both numbers, and to find that, you need to factor them out using multiples that are suitable for each number

15:

5 x 3(only multiple pair that has whole numbers)

18:

9 x 2(no)

6 x 3(yes)

After you have found your answer insert it into the equation.

3(5n-6)

To check if you're right, multiply 3 into the brackets and you will get your answer.

3 x 5n - 3 x 6

15n-18

SOLVED