Question 603080
Let the number of sticker each one initially had be x, and both together had 2x stickers.
After Izzy gives Logan 72 stickers,
Izzy has x-72 and
Logan has x+72.
They tell us that
x+72=3(x-72)
Multiplying (distributive property, we get the equivalent equation
x+72=3x-216
Adding 216 to both sides of the equal sign, we get
x+72+216=3x-216+216  --> x+288=3x
Subtracting x from both sides, we get
x+288-x=3x-x --> 288=2x
Logan and Izzy had initially had {{{highlight(288)}}} stickers between the two of them.