Question

Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.

If n is "the number," which equation could be used to solve for the number?

Answer 1

Answer:

3 x 4 + n = 18

Step-by-step explanation:

n would equal 6, since 3 times 4 is 12, and 18 - 12 is 6.

Hope this helps!

Answer 2

Answer: n = 3, and the equation is 3(4 + n) = n + 18

Step-by-step explanation:

Let’s put this down into numbers:

3 (4 + n) = n + 18

Now, you try to put all the variables on one side, and the constant numbers on the other.

However, you first need to simplify by using the Distributive Property:

12 + 3n = n + 18

Now, I will subtract 12 from one side.

3n = n + 18 - 12

3n = n + 6

Now, I move the n.

3n - n = 6

2n = 6

Then, we divide!

$\frac{2n}{2}$=$\frac{6}{2}$

n = 3

The answers to your question are that n= 3 and the equation is 3(4 + n) = n +18.