# How do you translate "7 less than twice a number and k" as an algebraic expression?

##### 1 Answer

Jun 3, 2018

#### Answer:

#### Explanation:

Here are a couple hints to turn this into an equation:

- "Less than" means subtraction, whereas "more than" means addition.
- Saying "twice a number" means that you are multiplying that number by 2

I will put the "7 less than" last, since it will be subtracted from the rest of the equation:

"twice a number"

#rArr color(blue)(2n)# "and k" (This means that it is twice

#n# and twice#k# , or they are both multiplied by 2)

#rArr 2n color(blue)k#

But this is lessened by

"7 less than"

#rArr 2nk color(blue)(- 7)#

So the phrase translated into an equation is: