A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can’t quite remember which. Ei
ther 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?
Let x the age of John Amy's age = x + 9 from question, we get, John's age + Amy's age = 23 x+(x+9)= 23 => x + x + 9 = 23 => 2x = 23 - 9 => x = 14/2 => x = 7
