This is on the study guide for my final exam. I've spent over half an hour trying to get this problem solved and yet I still find myself stumped. Here's the problem:
Bobby gets $20 dollars for each lawn he mows and $25 for each driveway he shovels. At the end of an unspecified time period, he gets a total of $1,500 and has done a total of 68 jobs.
How many lawns and driveways did he end up doing?
Oh, and a minor side note: I'm very busy and stressed at this moment in time, so (please don't take any offense by this) just guide me through the equation without doing anything that requires me to respond. I noticed this on the last thread I posted on.