Question

Translate the following word phrase into an expression.

Twenty less than three times the sum of four and a number, n.

Answer 1

20-3(4n)

Answer 2

Actually, it's 3(4+n) - 20

To work it out, you can sort of read it right to left.
"the sum of four and a number, n" is 4 + n because sum means add
"three times the sum of four and a number, n" means multiply that sum by 3, so you get 3(4+n)
"Twenty less than three times the sum of four and a number, n."
The "Twenty less than" means you subtract 20 from that

Answer 3

It is a very good problem, because it is like trying to translate one language to another, and it can differ depending on the translator. I am not saying that it is wrong but I would translate as follows, the results would be: "3(4+n) - 20" In other words I take the word "less" as a verb and is ordering a subtraction. Again, I am not saying this is the best answer, but it is an answer.

Answer 4

It is a very important concept, and that is why some students have trouble with written problems.

Answer 5

That is why I agree with @Tommynaut