Problem 66 of 7
Verify that x = 21 solves x / 3 = 7 by substitution.
Hints
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verify final value in original equation.
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Candidate must satisfy the equation exactly.
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
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1. Replace the variable with the candidate value.
2. Simplify the left side and compare it to the right side.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Statement of correctness without substitution.