Question 760912
To solve this problem we translate the words, into math language.
Here is how the words turn to math
*twice a number means two times a number (2x) (let unknown number mean x)
*diminished by 17 means a number is subtracted by 17 (2x-17)
*is means equal (=)
*-3=-3
 using the broken down math, we can put it all together and make the equation:
2x-17=-3
From here, all you do is solve for x.

TRY IT :)