## Elementary Algebra

We can use the following guideline to solve this problem: Current weight - Amount of weight to be lost = New weight So, 240 - 20% $\times$ 240 = New weight So, 240 - .2 $\times$ 240 = New weight 240 - 48 = New weight 192 = New weight After she loses the percent of weight the doctor advised, she will weigh 192 pounds.