Yacob had a box of chocolates. 34 of the chocolates were dark chocolates
and the rest were white chocolates. After he ate 12 of the white
chocolates, there were 90 more pieces of dark chocolates than white
chocolates. How many pieces of chocolates were there in the box at first?
c = original amount of chocs
3/4 c = dark 1/4 c = w
(1/4 c ) 1/2 = 3/4 c - 90 c = 144