Question

2x-3y=13, 11x-7y=43 (elimination method)​

Answer 1

Answer:

11x-7y =43

-2x-3y=13

=9x-4y=30

9x-4y=30

-2x-3y=13

=7x-y=17

this is very long method

Step-by-step explanation:

so you can solve this equation by Cramer's method.

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Answer 2

Answer:

x=2 and y=-3

Step-by-step explanation:

2x-3y=13 can be written as [2x-3y=13]×11

22x-33y=143  -(Eq 1)

Simmilarly

11x-7y=43 can be written as [11x-7y=43]×2

22x-14y=86 -  (Eq 2)

22x-33y=143

22x-14y=86

(-)__________

    -19y=57

   y=57/-19= -3

Putting value of y in eq 2

 22x-14×-3=86

  22x 42 =86

  22x=86-42

 22x=44

 x=44/22

 =2

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