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Algebra
/ Systems of two linear equations in two variables
Difficulty: Easy
What is the solution to the given system of equations?
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Explanation
Choice A is correct. The second equation in the given system is . Substituting for in the first equation in the given system yields , or . Subtracting from both sides of this equation yields . Dividing both sides of this equation by yields . Therefore, the solution to the given system of equations is .
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.