Solve 3/(x - 1) = 6/(x + 2).
Answer and explanation
Correct answer: A. x = 4
- Step 1: Cross-multiply: 3(x + 2) = 6(x - 1). Step 2. 3x + 6 = 6x - 6, so 3x = 12 and x = 4 (neither denominator is zero). Answer: x = 4. Why not the others: each other value comes from an algebra slip in the cross-multiplication.
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