Question 1062194
let x be the number.


10% of x is equal to .10x


you have x - .10x = 700


combine like terms to get .9x = 700


divide both sides of this equation by .9 to get x = 700/.9 which is equal to 777.77777778.


that's the number that you're looking for.


how do you know this is true?


take 777.77777778 and subtract 10% of that to see what you get.


777.77777778 = 77.77777778 is equal to 700.


unless you store the intermediate results in your calculator, you might get some rounding errors.


if they're there, they should be minimal.