Problem 139 of 7
Show that x - 5 = 10 and x = 15 have the same solution set by using equivalence-preserving transformations.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
show a sequence of equivalence-preserving transformations.
Hidden until you reveal it.
Equations must be connected by reversible equality-preserving transformations.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify a transformation from one equation to the other.
2. Explain why the transformation preserves equality and solutions.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Arguments based only on both having the same final answer if no equivalence is shown.