2-31.  write an equation and solve it to find the answer to the question below.   use the 5-d process to you write the equation, if needed.  remember to define your variable and to write your answer in a complete sentence. susan is buying three different colors of tiles for her kitchen floor.  she is buying 25 more red tiles than beige tiles, and three times as many navy-blue tiles as beige tiles.  if susan buys 435 tiles altogether, how many tiles of each color does she buy?