math
posted by Phia .
Sandra spent onefifth pf her money and loaned onethird of the remainder to her brother Sam. She then had $24. How much money did she have at first?

m  m/5  (4m/5)/3 = 24
m  m/5  4m/15 = 24
8m/15 = 24
m = 24(15/8) = 45
check:
started with 45
spent 9, leaving 36
lent 12, leaving 24