Mr. Rey's bank account was overdrawn with a balance of -$26.00. He deposited some money, and his new balance is $23.00. How much money did Mr. Rey deposit?
Let N be the amount he deposited (in dollars).......then we have
-26 + N = 23 add 26 to both sides
N = 49
$26.00 + $23.00 = $49.00 Amount he deposited.