math
posted by natasya .
sally and susan had an equal amount of oney each. after sally spent $15 and susan spent $24, the ratio of sally's money to susan's money was 4:3. how much money did each girl have at first?

let the starting amounts be x and y
x = y
(x15)/(y24) = 4/3
x=y=51
check
(5115)/(5124) = 36/27 = 4/3