Question

Which of the following expressions represents "The product of 9 and a number, diminished by 7"?

Answer 1

For this case we have to:

x: Be the variable that represents the unknown number

Then, the product of 9 and a number is represented as:

$9 * x$

If the product is reduced 7 units we have to:

$9x-7$

Finally the expression is:

$9x-7$

ANswer:

$9x-7$