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Questions  

The number of solutions of 2x+y=4,x2y=2,3x+5y=6  is

a
0
b
1
c
2
d
infinitely many

detailed solution

Correct option is B

By solving 2x+y=4;  x−2y=2,  we get x=2, y=0 This also satisfies 3x+5y=6.

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1x+2y+1z=2, 3x4y2z=1, and 2x+5y2z=3,

Then the value of y  is___________.


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