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Prove that x+y=5 when 101x+99y=499 and 9...

Prove that x+y=5 when 101x+99y=499 and 99x+101y=501.

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CALCUTTA BOOK HOUSE-LINEAR EQUATIONS-EXERCISE - 4.2
  1. Find the quantity by which the the equation (a+b)(x+y)=a^(2)+b^(2) sho...

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  2. Eliminate t: x=at^(2), y=2at

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  3. Prove that x+y=5 when 101x+99y=499 and 99x+101y=501.

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  4. Express y of the equation (xy)/(x-y)=8 in term of x.

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  5. If y=(ax+b)/(cx+d), then express x in term of y.

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  6. Determine the value of y by eliminating x from the simultaneous linear...

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  7. Determine the value of x by substituting y=2/(5x+3) in the equation 2x...

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  8. Find the value of y by substituting x=(by+a^(2)-b^(2))/(a) in the equa...

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  9. Find the value of y if x=y/(1-9y) " and " x=(-y)/(1-5y).

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  10. Solve the following simultaneous linear equations in two variables by ...

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  11. Solve the following simultaneous linear equations in two variables by ...

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  12. Solve the following simultaneous linear equations in two variables by ...

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  13. Solve the following simultaneous linear equations in two variables by ...

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  14. Solve the following simultaneous linear equations in two variables by ...

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  15. Solve the following simultaneous linear equations in two variables by ...

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  16. Solve the following simultaneous linear equations in two variables by ...

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  17. Solve the following simultaneous linear equations in two variables by ...

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  18. Solve the following simultaneous linear equations in two variables by ...

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  19. Solve the following simultaneous linear equations in two variables by ...

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  20. Solve the following simultaneous linear equations in two variables by ...

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