PLEASE somebody explain how to do this problem

x+2y=2

x-4y=14

How far is x from 5 on a number line?

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

For what value of x does 4x = (1/8) x + 5?