BACKSOLVING
Exercise
You can backsolve when the answer choices contain only numbers.
Always start with the middle answer choice, (C) or (H).
If the middle answer choice is not correct, you can usually eliminate two more choices simply by determining whether the value
must be higher or lower.Mike has n Hawaiian shirts, and Adam has 3 times as many Hawaiian shirts. If Adam gives Mike 6 Hawaiian shirts, they would
have an equal number of Hawaiian shirts. How many Hawaiian shirts does Mike have?vii.