Question

12. 2x-3y+4=0,x+2y-5=0​

Answer 1

Answer:

2x-3y=-4.............1

x+2y=5..............2

now multiplying 2 in equation 2nd we get,

2(x+2y=5)

2x+4y=5.........3

now solving equation 1st and 3rd we get,

2x-3y=-4

2x+4y=5

- - -

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

-7y=-9

7y=9

y=7/9

now for x,

2x-3y=-4

2x-3×7/9=-4

2x-7/3=-4

2x=-4+7/3

2x=-5/3

x=-5/6

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