Answer:
number is 34
Explanation:
let the number be n then the difference of n and 19 is n - 19
multiplying n - 19 by - 7 gives - 105
the equation is then
- 7(n - 19) = - 105 ( divide both sides by - 7 )
(n - 19) =
( simplify both sides )
n - 19 = 15 ( add 19 to both sides )
n - 19 + 19 = 15 + 19 , that is
n = 34
the number is 34