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If ( 2x - 3y + 1)/(2) = (x + 4y + 8)/(3)...

If `( 2x - 3y + 1)/(2) = (x + 4y + 8)/(3) = ( 4x - 7y + 2)/(5)` then what is (x +y) equal to ?

A

3

B

2

C

0

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
D
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LUCENT PUBLICATION-ALGEBRAIC IDENTITIES -Exercise - 1A
  1. IF x+y+z=0 then what is (xyz)/((x+y)(y+z)(z+x)) equal to

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  2. IF (5x-7y+10)/1=(3x+2y+1)/8=(11x+4y-10)/9 then what is x+y equal to

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  3. If ( 2x - 3y + 1)/(2) = (x + 4y + 8)/(3) = ( 4x - 7y + 2)/(5) then wh...

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  4. If x = a ( b - c) , y = b ( c - a) and z = c ( a - b) then ((x)/...

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  5. If x^2 + 2 = 2 x , then the value of x^4 - x^3 - x^2 + 2 is

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  6. If 2^(x)=3^(y)=6^(-z), then the value of 1/x+1/y+1/z-

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  7. If (1)/( x + y) = (1)/(x) + (1)/(y) ( x ne 0, y ne 0, x ne y) then t...

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  8. For real a, b, c if a^(2) + b^(2) + c^(2)= ab + bc + ca then value ...

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  9. If x+(1)/(x)=5 then (2x)/(3x^(2)-5x+3) is

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  10. If x^(4) +(1)/(x^(4)) =119 and x gt 1 then what is the value of x^(3)-...

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  11. If (x+y-z)^(2) +(y+z-x)^(2) +(z+x-y)^(2)=0 then what is the value o...

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  12. If x - y = ( x + y)/(7) = (xy)/(4) the numerical value of xy is

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  13. If x + y + z = 0 then (x^(2))/(yz) + (y^(2))/( zx)+ ( z^(2))/( xy)=...

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  14. If x + y = a and xy = b^(2) then the value of x^(3) - x^(2) y - x...

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  15. If (3a+1)^(2) +(b-1)^(2) +(2c-3)^(2)=0, then value of (3a+b+2c) is

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  16. If xy ( x + y) = 1 ,then the value of (1)/( x^(3) y^(3)) - x^(3) -...

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  17. If frac(x)(2x^2+5x+2)=frac(1)(6), then the value of (x+frac(1)(x)) is

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  18. Value of the expression ((a-b)^(2))/((b-c) (c-a)) +((b-c)^(2))/((a-b) ...

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  19. If 3x+(1)/(2x)=5 then what is the value of 27x^(3)+(1)/(8x^(3))?

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  20. If (a-3)^(2)+(b-4)^(2) +(c-9)^(2)=0 then what is the value of sqrt(a+b...

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