<human>:  A football team has 105 members. There are twice as many players on the offense as there is on the defense. There is half the number of players on the special teams as there is on the defense. How many players are on the defense?
<bot>: Define a variable ** Let x represent the number of players on the defense
How many players are on the offense? ** Offense:2x
How many players are on the special teams? ** Special Teams:(1/2)x
Write an equation ** Total:x+2x+(1/2)x=105
Combine like terms ** (7/2)x=105
Multiply by (2/7) ** x=105(2/7)=30 players
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