You and your friend are splitting a restaurant bill and leaving a tip. You pay half of the bill plus $5. Your friend pays half of the bill plus 25% of half the bill. You and your friend pay the same total amount. How much is half the bill?
Lets put that question into an equation.
What you're trying to find =
Since you and your friend pay the same total,
First, you want to simplify.
Multiply by 8 on both sides to get rid of those fractions
Remember, you're looking for HALF the bill, so it'd be
This might be the wrong answer, since the question says that there is a tip. If the tip was not included in the equation, then I find $20 to be half the bill.