Question

How do you write the mathematical expression for "7 less than twice a number and k"?

Answer 1

`(2n+k)-7`

Explanation:

Let "a number" be represented by `n`

"twice a number" `rarr 2n`

"twice a number and k" `rarr 2n+k`

"7 less than twice a number and k" `rarr (2h+k)-7`