Question

solve this equation from pratishthapan vidhi 2x-3y=13
7x-2y=20
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Answer 1

Step-by-step explanation:

yay xam xam xam xam xam ki xam xam xam x

Answer 2

Answer:

x = -2     &    y = - 17/3

Step-by-step explanation:

2x - 3y = 13 --------1

7x-2y=20    --------2

multiplying eqn 1 with 2 & eqn 2 with 3, we get

4x-6y=26

21x-6y=60

subtracting 21x-6y=60 from 4x-6y=26

4x - 6y - 21x + 6y = 26 - 60

-17x = 34

x = -2

putting x = -2 in eqn  1 , we get

2(-2) - 3y = 13

-4 - 3y = 13

-4 -13 = 3y

-17 = 3y

y = - 17/3

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