Problem 129 of 7
Verify proposed solution to rational or radical equation: x=7 for sqrt(2x+2)=4.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
substitute into original equation.
Hidden until you reveal it.
Substitute into the original equation, not only transformed equation.
Enter your answer
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Check candidate against original domain restrictions.
2. Substitute into the original equation.
3. Compare both sides and classify.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Verification using only squared or denominator-cleared equation.