The pair of coincident lines in the following are
A. x − 2y = 0 B. 2x + 3y = 9
3x + 4y = 20 4x + 6y = 18
C. x + 2y = 4 D. x + y = 8
2x + 4y = 12 x − y = 4
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Answer:
A ( x, y ) =( 18,9)
B (x, y)= ( 24,-13)
C ( x, y) = ( 12,-4)
D ( x, y ) =( 2,-2)
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