Question

2x+3y = 9
5x + 7y =11​

Answer 1

2x + 3y = 9..........(i) ×5

5x + 7y = 11...........(ii) × 2

10x + 15y = 45

10x + 14y = 22

(-) (-) (-)

-----------------------------

y = 23

Therefore,

2x + 3y = 9

=> 2x + 69 = 9

=> 2x = 60

=> x = 30

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