Problem 60 of 7
Compare solution path A: add x/5 and 2x/5 to get 3x/5 = 9, then solve with solution path B: multiply the entire equation by 5 to clear fractions, then solve x + 2x = 45. Are both correct, and which is more efficient?
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
recognize equivalent strategies and efficiency.
Hidden until you reveal it.
Both paths must be valid but differ in efficiency.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Check whether each path uses equality-preserving steps.
2. Compare number and complexity of steps.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Calling a valid alternate path wrong.