First, "twice a number, x" means to multiply x by 2:
2x
Then, "the sum of twice a number x and eight" can be written as :
2x + 8
"three times the sum" would be written as :
3 (2x + 8)
Lastly, "is twenty-four" can be represented as:
=24
If you combine the last two portions , you have the following equation:
3 (2x+ 8) = 24
This equation could be solved to fins the value of x as well.
