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If 2x/2y = 23 , then x must be equal to?

Correct answer: C. y+3

  • A. 3-y
  • B. y-3
  • C. y+3
  • D. 3y

Explanation

The original equation is 2x/2y = 23. Using the quotient rule for exponents, we have 2x-y = 23. This means that x - y = 3. Solving for x gives us x = y + 3. Therefore, the correct answer is x = y + 3. The other options are incorrect because they do not properly apply the properties of exponents to solve for x given the equation.

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About Quantitative Reasoning

Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.

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