Algebra practice question

Answer: 2

Add the equations: 5x = 15, so x = 3. Then 6 + 5y = 1 gives y = −1. x + y = 3 + (−1) = 2.

Common wrong answers

If you answered 3

3 is x alone.

If you answered 4

4 is x − y, the difference.

If you answered -1

−1 is y alone.

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