Respuesta :

DavidOrrell
Write an equation, then solve it, where the number is expressed as x. The wording is a little tricky, but I take it as meaning:

-take 7 from the number
-multiply it by 5
-add 25

5(x - 7) + 25 = 0
5x - 35 + 25 = 0
5x - 10 = 0
5x = 10
x = 2