Peter and Tom had a total of $950. After Peter saved another $250 and Tom spent 2/5 of his money, both of them had the same amount of money. How much did Peter had at first?
Write out the 2 equations:
Subsititue T:
P + 250 = 2/5 (950 - P)
P + 250 = 380 - 2/5P
P = 130 - 2/5P
5/5P + 2/5P = 130
Check:
Solve for T:
T = 950 - 92.86 = $857.14
Validation: