MediumMath· Algebra· Systems of two linear equations in two variables· MCQ
The solution to the given system of equations is . What is the value of y?
A
B
C
D
Correct answer: A
Explanation
Choice A is correct. The given system of linear equations can be solved by the elimination method. Multiplying each side of the second equation in the given system by yields , or . Subtracting this equation from the first equation in the given system yields , which is equivalent to , or .
Choice B is incorrect. This is the value of , not the value of .
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.
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id cb_question_bank:a2c7bbe5-59af-47b9-8fd5-6e639440d29f · question 2875ba81
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