jeremy mowed several lawns to earn money for camp. After he paid $17 for gas he had $75 left over to pay towards camp. Write and solve an equation to find how much money he earned mowing lawns.
17+75=x or it could be written x-17=75 since he PAID $17 for gas, that makes it negative if he has $75 left over AFTER subtracting $17, 17+75 is the total he had before.