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