The product of 3 and a number is 39

Algebraic expression ; 3x = 39

Step-by-step explanation:

Let the unknown number be x

Further solving

13

Step-by-step explanation:

the product of 3 and a number

that means 3*something

we can call something "x"

so we have

3*x = 3x

is 39

That means that something is equal to 39

let me write it

something = 39

but we know that this something is 3x

so we have

so the number is 13