$120 - 100% $x - 40% 40 * 120 / 100 = 48 $120 - $48 = $72 The Candle Company is having its semiannual sale. All items are 40 percent off. If the original price of a candle basket is $120, the sale price is $72.
The way that you would do this is by taking out of the binomial, or as I like to think about it, 'un-distributing'. :p out of , you end up with . When you take out of , you get . Put it together, and the solution is - .
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.