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x=1 and y=-(1)/(2) then x-y=…………...

x=1 and y=`-(1)/(2)` then x-y=…………

A

`-1`

B

1

C

`-1/2`

D

`3/2`

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VGS PUBLICATION-BRILLIANT-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
  1. 2x-3y=-12 then at x=0, y=………..

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  2. Two parallel lines differ by……….

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  3. x=1 and y=-(1)/(2) then x-y=…………

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  4. If 99x+101y=499,101x+99y=501 then x=………..

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  5. If 99x+101y=499,101x+99y=501 then x=………..

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  6. 141x+93y=189,93x+141y=45 then y=……..

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  7. A thin wire 20 centimeters long is formed into a rectangle. If the wid...

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  8. If -x-y=-10, then x=………….

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  9. (-a,-b)in……………

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  10. (2,0) lines on………

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  11. The line 2x-3y=8 intersects X-axis at………

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  12. The values of k for which the pair of linear equations 3x-2y=7 and 6x+...

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  13. The pair of linear equations -3x+4y=7 and (9)/(2)x-6y+(21)/(2)=0 has……...

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  14. If ad ne bc then the pair of linear equations ax+by=p and cx+dy=q has…...

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  15. A line parallel to the line x+2y+1=0 is…………

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  16. The pair of equations x=3,y=2 graphically represent lines which……..

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  17. If the pair of equations 2x+y=7 and 6x-py-21=0 has infinite number of ...

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  18. The value of k for which the system of equations kx+3y=1, 12x+ky=2 has...

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  19. The line 3x+y=7 intersects X-axis at…………

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  20. For what value of k, 2x+3y=4 and (k+2)x+6y=3k+2 will have infinitely m...

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