Here is a Good Equation: She made $93. $65 were tips. She also made $4 and hour. We can use any letter, I’ll use h, to represent hours. If she makes $4, we should write: 4h+65=93. Then, isolate the h term, by subtracting 65 from both sides. 95-63=32. 4h=32. Finally, divide by 4. We get rid of the four, and end up with h=8. 8 hours.
