Roman and Remy took separate showers. Remy used 1 more gallon than 3 times the number of gallons that Roman used for his shower. Together the boys used 33 gallons of water.  How many gallons did Remy use?
Let R = Roman's gallons
Remy = 3R + 1
4R + 1 = 33
4R = <<32=32>>32
R = <<8=8>>8
Remy used 25 gallons of water for his shower.
#### 25