Common Algebra Mistakes
Example: Solving a Logarithm Equation 
The Goal
Solve the following equation for y:
The Mistake
Find the algebra mistake: (Roll the mouse over the algebra to see a hint in red) The Correction
(Roll the mouse over the area above to see the correction in blue) An Explanation Instead of dividing by 4 the student added 4 to both sides. The mistake has nothing to do with logarithms. The correct step is:
