QUESTION BY QUESTION: This question tests basic arithmetic skills. You can use your calculator, but also do a quick mental check on your answer. Most questions take the form of the solving or ...

Equations that have more than one unknown can have an infinite number of solutions. For example, \(2x + y = 10\) could be solved by: \(x = 1\) and \(y = 8\) \(x = 2\) and \(y = 6\) \(x = 3\) and \(y = ...