The text can be written out as an equation like this: 121 = 11x - 22. The total is 121, and 22 is less than the number 11 times another number, which for this equation will be represented by x. Now all you have to do is solve for x.
121 = 11x - 22
121 + 22 = 11x - 22 + 22 (We must isolate the variable x by ridding all of the other terms of the equation. However you must remember that whatever you do on one side of an equation you must also do on the other side of the equation- - that is why we are added 22 to 121 as well as 11x - 22. We are adding it because it cancels out -22 on the right side, as in -22 + 22 = 0.)
143 = 11x
143/11 = 13
13 = x
121 is 22 less than 11 times a number. The number is 13.
