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Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

If x plus (2 times x) is 5 more than y plus (2 times y), then x minus y equals 

Answer Choices

Correct!

Explanation

The statement given in words translates into the equation x plus (2 times y) equals y plus (2 times y) plus 5. This simplifies to 3 times x equals (3 times y) plus 5. Then (3 times x ) minus (3 times y) equals 5, and so 3 times (x minus y) equals 5.
It follows that x minus y equals (5 over 3).

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