Question

Lisa has a certain amount of money. She spent $39 and has 3/4 of the original amount left. How much money did she have originally

Answer 1

We know that she spent $39, and has 3/4 of the original amount left. Our goal is to find the original amount. We can use the equation. x - 39 = 3/4x. Once we subtract x on the left hand side, we get -39 = -1/4x. Once we multiply -39 by -4, we get 146. She originally had $156.