Solve . What is the value of ?
Answer and explanation
Correct answer: B. 5
- Step 1: Eliminate one unknown by combining the two equations; this gives and .
- Step 2: Check in the first equation: .
- Step 3: Hence .
Answer
5.
Why not the others: 8: that is only the value of . 3: that is only the value of . 35: wrong combination of the solutions.
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