AlgebraEasyChecking a proposed solution of a system
Algebra practice question
Which of the following ordered pairs (x, y) satisfies both x + y = 5 and x − y = 1?
- A. (3, 2)Correct
- B. (2, 3)
- C. (4, 1)
- D. (5, 0)
Answer: A. (3, 2)
3 + 2 = 5 and 3 − 2 = 1.
Why the other answers are wrong
- B. (2, 3)
- 2 − 3 = −1, not 1.
- C. (4, 1)
- 4 − 1 = 3, not 1.
- D. (5, 0)
- 5 − 0 = 5, not 1.
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