Advanced MathMediumRational equation with a common denominator
Advanced Math practice question
What value of x satisfies 3/x + 3/(2x) = 9/4?
Answer: 2
3/x + 3/(2x) = 9/(2x), so 9/(2x) = 9/4 and 2x = 4.
Common wrong answers
- If you answered 1
- 1 gives 3 + 1.5 = 4.5.
- If you answered 4
- 4 is 2x.
- If you answered 0.5
- 0.5 inverts the answer.
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