Question

difference between twice a number and 3 is 15. use x form for unknown number

Answer 1

hello users ...
solution:-
Difference between twice a number and 3 is 15.

let the number be = x 

According to condition 
2x - 3 = 15 

=> 2x = 15+3 = 18

=> x = 9  

hence
the unknown number = 9 answer  

@ hope it helps :)