A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can't quite remember which. Either way, he is planning to pay her back or ask that she pay him back this afternoon. If he has $42.80 in his wallet, which equation represents the amounts of money he may have after he sees Rita?
He will either have $54.80 or $30.80 in his wallet. Also, the question says, how much money will he have after, not how much will he have in his wallet after..... so you just write x as its unknown how much other money he has.... just saying