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Which expression is equivalent to 3r+7r3r + 7r?\newlineChoices:\newline(A) 10r10r\newline(B) r+10r + 10\newline(C) 9r9r\newline(D) r10r^{10}

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Identify equivalent expressions IIright chevron icon

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Q. Which expression is equivalent to 3r+7r3r + 7r?\newlineChoices:\newline(A) 10r10r\newline(B) r+10r + 10\newline(C) 9r9r\newline(D) r10r^{10}
  1. Identify like terms: Identify like terms in the expression 3r+7r3r + 7r; both terms are like because they contain the variable rr.
  2. Add coefficients of like terms: Add the coefficients of rr: 3+7=103 + 7 = 10. So, 3r+7r=10r3r + 7r = 10r.
  3. Match with choices: Match the result with the given choices: (A) 10r10r is the correct match.

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