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If 3 x + 4 y - 2 z + 9 = 17 , 7 x + 2y ...

If ` 3 x + 4 y - 2 z + 9 = 17 , 7 x + 2y + 11 z + 8 = 23 and` `
` `5x + 9y + 6z - 4 = 18` , then what is the value of ` x + y + z - 34` ?

A

`-28`

B

`-14`

C

`-31`

D

`-45`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(10)-EXERCISE
  1. If 3 sqrt(( 1 - a)/( a)) + 9 = 19 - 3 sqrt(( a)/( 1 - a)) then what ...

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  2. If a + b = 10 and sqrt((a)/(b)) - 13= - sqrt((b)/(a)) - 11 then wha...

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  3. If 3 x + 4 y - 2 z + 9 = 17 , 7 x + 2y + 11 z + 8 = 23 and 5x + 9y...

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  4. If x + 3y - ( 2 z)/( 4) = 6 , x + (2)/(3) ( 2 y + 3 z) = 33 and (1...

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  5. In the given figure, in triangle STU, ST = 8 cm, TU = 9 cm and SU = 12...

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  6. In triangle XYZ, G is the centroid. If XY = 11 cm, YZ = 14 cm and XZ =...

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  7. In the figure given figure, PQRS is a square inscribed in a circle of ...

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  8. In a trapezium, one diagonal divides the other in the ratioi 2 : 9. If...

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  9. In the given figure, CD and AB are diametres of circle and AB and CD a...

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  10. In the given figure, PQRS is a square of side 20 cm and SR is extended...

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  11. In the given figure, MNOP is a square of side 6 cm. What is the value ...

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  12. In the given figure, triangle PQR is a right angled triangle at Q. If ...

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  13. In the given figure, P is the centre of the circle, If QS = PR, then w...

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  14. The distance between the centres of two circles is 61 cm and their rad...

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  15. In the given figure, PQRS is a quadrilateral. If QR = 18 cm and PS = 9...

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  16. PQR is a triangle, whose area is 180 cm^(2). S is a point on side QR, ...

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  17. In the given figure, ABCD is a square. EFGH is a square formed by join...

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  18. ABCDEF is a regular hexagon of side 12cm. What is the area (in cm^2) o...

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  19. PQRS is a square whose side is 16 cm. What is the value of the side (i...

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  20. In the given figure, PQRS is a rectangle and a semicircle with SR as d...

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