SAT Math Multiple Choice Practice Question 539: Answer and Explanation

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Question: 539

17. If x > 0 and , what is the value of x ?

A. 4
B. 3
C. 2
D. 1
E. 0

Correct Answer: C

Explanation:

C Let's multiply out what you have in parentheses using FOIL. This gives you , or 9 – x. So our equation now reads 9 – x = 7. This makes x = 2.

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