algebra/geometry
posted by abby .
The Binary Ice Cream Shoppe sells two flavors, vanilla and chocolate. On Friday, the ratio of vanilla cones sold to chocolate sold was 2:3. if the store had sold 4 more vanilla cones, the ratio of the vanilla cones sold to chocolate cones sold would have been 3:4 how many vanilla cones did the store sell on Friday?
kindly show your solution

V/C = 2/3, so C = 3V/2
(V+4)/C = 3/4
V+4 = (3/4)C = (9/8)V
V/8 = 4
V = 32
C = 48