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Solve for x and y respectively in the simultaneous equations -2x - 5y = 3....

Mathematics
JAMB 2011
Solve for x and y respectively in the simultaneous equations -2x - 5y = 3. x + 3y = 0
  • A. -3, -9
  • B. 9, -3
  • C. -9,3
  • D. 3, -9
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Correct Answer: Option C
Explanation
-2x -5y = 3

x + 3y = 0

x = -3y

-2 (-3y) - 5y = -3

6y - 5y = 3

y = 3

but, x = -3y

x = -3(3)

x = -9

therefore, x = -9, y = 3

There is an explanation video available below.

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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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