Question

The sum of 12 and a certain number is equal to the product of 3 and the number

Answer 1

Answer:

Read the explanation!

Step-by-step explanation:

Let the "certain number" be $x$.

($*$ is a symbol for multiplication).

Create a few equations and expressions:

The sum of 12 and a certain number: $12 + x$

The product of 3 and the number: $3 *x = 3x$

The sum of 12 and a certain number is equal to the product of 3 and the number:

$12 + x$ = $3x$

Solve!

12=3x-x

12=2x

x=6