ISEE Mathematics Achievement Question 56: Answer and Explanation

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Question: 56

14. If 14x - 2y = 32 and x + 2y = 13, then x =

A. 8
B. 5
C. 4
D. 3

Correct Answer: D

Explanation:

The correct answer is (D). Write down both equations and add them together.

14x - 2y = 32

+ x + 2y = 13

15x = 45

x = 3