sat suite question viewer
Problem-Solving and Data Analysis
Difficulty: Easy
If 
, which of the following is equivalent to 
?
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Explanation
Choice A is correct. It’s given that . Multiplying both sides of this equation by 2 yields 
, or 
.
Choice B is incorrect and may result from dividing, instead of multiplying, the right-hand side of the equation by 2. Choices C and D are incorrect and may result from calculation errors.