When twice a number is reduced by 15 you get 95 what is the number? The phrase a number means an arbitrary variable, let's call it x. x Twice x means we multiply x by 2 2x Reduced by 15 means we subtract 15 2x - 15 You get means equal to, as in an equation. Set 2x - 15 = 95 2x - 15 = 95 <-- This is our algebraic expression. Type 2x - 15 = 95 into the search engine and we get x = 55.