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|{:(3,-1),(1," "4):}|...

`|{:(3,-1),(1," "4):}|`

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The correct Answer is:
`= 13`
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CHETAN PUBLICATION-LINEAR EQUATIONS IN TWO VARIABLES -Problem Set - 1
  1. Find the value of the determinant |{:(4,3),(2,7):}|.

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  2. |{:(" "5,-2),(-3," "1):}|

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  3. |{:(3,-1),(1," "4):}|

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  4. 6x-3y=-10,3x+5y-8=0

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  5. Solve the following equations by Cramer's method. 4m - 2n =-4, 4m + ...

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  6. 3x-2y=(5)/(2),(1)/(3)x+3y=(-4)/(3)

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  7. Solve the following equations by Cramer's method. 7x + 3y = 15, 12y ...

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  8. Solve for x and y (2)/(x)+(2)/(3y)=(1)/(6),(3)/(x)+(2)/(y)=0

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  9. Solve the following simultaneous equations: (7)/(2x+1)+(13)/(y+2)=27...

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  10. (148)/(x)+(231)/(y)=(527)/(xy),(231)/(x)+(148)/(y)=(610)/(xy)

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  11. Solve the following system of equations: (7x-2y)/(x y)=5,\ \ \ (8x+...

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  12. (1)/(2(3x+4y))=(1)/(5(2x-3y))=(1)/(4),

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  13. A two digit number and the number with digits interchanged add up to 1...

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  14. Kantabai bought 1(1)/(2) kg tea and 5 kg sugar from a shop. She paid...

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  15. Places A and B are 30 km apart and they are on a straight road. Humid ...

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  16. To find number of notes that Anushka had complete the following activi...

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  17. Sum of the present ages of Manish and Savita is 31 . Manish's age 3 ye...

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  18. In a factory the ratio of salary of skilled and unskilled workers is ...

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  19. For drawing the graph of 4x+5y=19, if x=1, what is the value of y?

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  20. For simultaneous equations in x and y, if D(x)=25, D(y)=50 and D=5, th...

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