3 less than c in numbers

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

W-16=-12 solve each one step equation plz

Write a similarity statement for the similar triangles. afgh ~ a