Question

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?

Answer 1

The answer is x=42.8+- (plus or minus) 12

So he should either have $30.80 or $44.80 left