MediumMath· Algebra· Systems of two linear equations in two variables· MCQ
In the solution to the system of equations above, what is the value of y ?
A
B
C
D
Correct answer: D
Explanation
Choice D is correct. Multiplying both sides of by 5 results in . Multiplying both sides of by 2 results in . Subtracting the resulting equations yields , which simplifies to . Dividing both sides of by results in .
Choices A and B are incorrect and may result from incorrectly subtracting the transformed equation. Choice C is incorrect and may result from finding the value of x instead of the value of y.
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id cb_question_bank:c32ce35c-b001-4aad-8fb4-1dc7076f6bcc · question 5e422ff9 · IBN 08687-DC
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