Question

Solve each of the following system of equations by elimination method.

Answer 1

HELLO DEAR,



11x - 7y = xy-----------( 1 )
9x - 4y = 6xy --------( 2 )


from-----( 1 ) & -------( 2 )
Multiply by (11) in ---( 2) and by (9)in -----( 1 )

99x - 63y = 9xy
99x - 44y = 66xy
—————————
-19y = -57xy

X = 1/3 [ put in ---( 2 )]


9*1/3 - 4y = 6*1/3y

3 - 4y = 2y

3 = 6y

Y = 1/2 , x = 1/3

I HOPE ITS HELP YOU DEAR, THANKS

Answer 2

Solution:-

given by:-

Solution:-

given by:-

11x + 7y = xy........(1)

9x - 4y = 6xy ......(2)

multiply in eq (1) by 9 and multipy in eq(2) by 11

99x +63y = 9xy.......(1)
99x -44y = 66xy.......(2)
-____+___-_____ by sub.

19y= -57xy

19 = -57x

x = -1/3

put y'a value in eq(1)

11×(-1/3) + 7y = -1/3×y

7y +y/3 = 11/3

22y = 33/3

y = 11/22

y = 1/2


here ( x ,y) = (-1/3 , 1/2) ans

☆i hope its help☆