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  • Simultaneous Equations
  • Solve: 1/x + 1/y = 5/6 and 1/x - 1/y = 1/6
Multiple choice

Solve: 1/x + 1/y = 5/6 and 1/x - 1/y = 1/6

  1. (- 2, - 3)

  2. (1/2, 1/3)

  3. (2, 3)

  4. (3, 2)

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Substitute 1/x = a and 1/y = ba + b = 5/6 and a - b = 1/6. Hence, a = 1/2 and b = 1/3 And x = 2 and y = 3

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