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Question

Solve the given pair of equations by substitution method:
x4y=8
x2y=0

A
(2,1)
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B
(7,6)
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C
(8,4)
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D
(3,6)
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Solution

The correct option is C (8,4)
We have, x4y=8x=4y8 ..........(1)
and x2y=0.......(2)
Now substitute value of x in terms of y from (1) to (2)
4y82y=0
2y=8
y=82=4
So x=4y8=4(4)8=8
Hence solution set is (x,y)=(8,4)

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