Question

How do you translate the word phrase into a variable expression: the product of 3 and a number decreased by 7?

Answer 1

See a solution process below:

Explanation:

"a number" `-> n`

"the product" is the result of multiplication:

"the product of 3 and a number" `-> 3n`

"decreased by" means to subtract from

"the product of 3 and a number decreased by 7" `-> 3n - 7`