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What value of cc is a solution to this equation?\newline15+c=2115 + c = 21\newlineChoices:\newline(A)c=6c = 6\newline(B)c=7c = 7

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Full solution

Q. What value of cc is a solution to this equation?\newline15+c=2115 + c = 21\newlineChoices:\newline(A)c=6c = 6\newline(B)c=7c = 7
  1. Isolate c in equation: Step 11: Isolate c in the equation.\newlineGiven equation: 15+c=2115 + c = 21.\newlineSubtract 1515 from both sides to isolate cc:\newlinec=21−15c = 21 - 15.\newlineCalculation: c=6c = 6.
  2. Check answer choices: Step 22: Check the answer choices.\newlineGiven choices:\newline(A) c=6c = 6\newline(B) c=7c = 7\newlineOur calculated value of cc is 66, which matches choice (A).

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