jane and peiling saved the same amount of money. after jane lent $42 to peiling, peiling had three times as much money as jane. how much did peiling have in the end?
Originally: j = p
Finally; p + 42 = 3(j - 42)
Use the first in the second: p + 42 = 3(p - 42)
Simplify: p + 42 = 3p - 126 or 2p = 168 so p = $84
That is the original amount that peiling had, so the final amount is 84+42 = $126
