MediumMath· Algebra· Systems of two linear equations in two variables· SPR
The solution to the given system of equations is . What is the value of ?
Correct answer: 18
Explanation
The correct answer is . It's given by the second equation in the system that . Substituting for in the first equation in the system, , yields . Subtracting from both sides of this equation yields .
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id cb_question_bank:f68f4bdd-f19a-44eb-8304-90f07cbf56ca · question e53688cb
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