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For drawing the graph of 4x+5y=19, if x=...

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

A

4

B

3

C

2

D

`-3`

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The correct Answer is:
B
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TARGET PUBLICATION-LINEAR EQUATIONS IN TWO VARIABLES -Problem Set -1
  1. For drawing the graph of 4x+5y=19, if x=1, what is the value of y?

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  2. For simultaneous equations in variables x and y, Dx = 49, Dy = - 63, D...

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  3. Find the value of |{:(5, 3),(-7, -4):}|

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  4. To solve x + y = 3, 3x - 2y - 4 = 0 by determinant method find D.

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  5. ax+by=c and mx+ny=d. If an ne bm, then these simultaneous equations ha...

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  6. Solve the simultaneous equations graphically. 2x + 3y = 12, x - y ...

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  7. Solve the simultaneous equations graphically. x - 3y = 1, 3x - 2y ...

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  8. Solve the simultaneous equations graphically. 5x - 6y + 30 = 0, 5x...

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  9. Solve the simultaneous equations graphically. 3x -y -2 =0, 2x + y...

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  10. Solve the simultaneous equations graphically. 3x+y = 10, x - y = ...

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  11. Find the values of each of the follwing determinants. |{:(4,3),(2,7...

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  12. Find the values of each of the follwing determinants. |{:(5, -2),(-...

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  13. Find the values of each of the follwing determinants. |{:(3,-1),(1,...

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  14. Solve the following equations by Cramer's method. 6x - 3y = -10, 3x ...

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

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  16. Solve the following equations by Cramer's method. 3x - 2y = 5/2, 1/3...

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

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  18. Solve the following equations by Cramer's method. (x+y-8)/2 = (x+2y-...

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  19. Solve the following simultaneous equations 2/x + 2/(3y) = 1/6 , 3/...

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

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