Question

Write the following statement as a mathematical expression.The product of three and a number minus 15Do not use spaces in your answer for example 2x+3

Answer 1

There is two operation in this statement:

• A product between 3 and a number

,

• To the product, rest 15

Then, let's call "a number" as x. The product with 3 is:

$3x$

Subtracting 15:

$3x-15$

And that's the answer.